DS18B20.zip_ds18b20_arduino_单片机开发_嵌入式/单片机/硬件编程下载-pudn.com

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src="https://static.pudn.com/prod/directory_preview_static/639f1c2b8449b3069de5f5dd/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_ _0"> </span>1 <span class="ls1 ws1">of <span class="_ _1"></span></span>22 <span class="_ _2"> </span> <span class="_ _3"> </span><span class="ls2 ws2">R<span class="_ _4"></span>EV: <span class="ls0 ws0">0422<span class="_ _4"></span>08 </span></span></div><div class="t m0 x2 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x2 h2 ya ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h3 yb ff2 fs1 fc0 sc0 ls0 ws0">D<span class="ls3 ws3">ESCRIPT<span class="_ _4"></span>ION<span class="_ _1"></span><span class="ls0 ws0"> </span></span></div><div class="t m0 x1 h4 yc ff1 fs2 fc0 sc0 ls0 ws4">The DS18B20 <span class="ls4 ws5">d<span class="_ _1"></span>ig<span class="_ _5"></span>it<span class="_ _5"></span>a<span class="_ _1"></span>l<span class="_ _1"></span> <span class="_ _5"></span><span class="ls5 ws6">t<span class="_ _1"></span>her<span class="_ _1"></span>m<span class="_ _4"></span>o<span class="_ _6"></span>meter<span class="_ _1"></span> <span class="_ _5"></span><span class="ls0 ws4">provi<span class="_ _4"></span>des 9<span class="ws0">-<span class="ls4 ws5">b<span class="_ _6"></span>it<span class="_ _5"></span></span> </span></span></span></span></div><div class="t m0 x1 h4 yd ff1 fs2 fc0 sc0 ls0 ws7">to<span class="_ _1"></span> 12<span class="ws0">-<span class="ls4 ws5">b<span class="_ _6"></span>it<span class="_ _6"></span> <span class="_ _7"></span><span class="ls6 ws8">Ce<span class="_ _6"></span>ls<span class="_ _1"></span>iu<span class="_ _1"></span>s</span></span> <span class="_ _7"> </span><span class="ls7 ws9">tem<span class="_ _4"></span>pe<span class="_ _4"></span>ra<span class="_ _4"></span>tu<span class="_ _4"></span>re<span class="_ _4"></span> m<span class="_ _8"></span>eas<span class="_ _8"></span>urem<span class="_ _8"></span>en<span class="_ _8"></span>ts an<span class="_ _8"></span>d </span></span></div><div class="t m0 x1 h4 ye ff1 fs2 fc0 sc0 ls8 wsa">ha<span class="_ _1"></span>s<span class="_ _1"></span> a<span class="_ _1"></span>n a<span class="_ _1"></span>la<span class="_ _1"></span>r<span class="_ _6"></span>m <span class="_ _1"></span>fu<span class="_ _1"></span>nc<span class="_ _1"></span>t<span class="_ _5"></span>io<span class="_ _1"></span>n w<span class="_ _1"></span>it<span class="_ _6"></span>h no<span class="_ _6"></span>n<span class="_ _1"></span>vo<span class="_ _6"></span>lat<span class="_ _5"></span>ile<span class="_ _1"></span> u<span class="_ _1"></span>s<span class="_ _1"></span>e<span class="_ _1"></span>r<span class="_ _1"></span><span class="ls0 ws0">-</span></div><div class="t m0 x1 h4 yf ff1 fs2 fc0 sc0 ls0 wsb">pro<span class="_ _1"></span>gram<span class="_ _4"></span>mabl<span class="_ _4"></span>e upper<span class="_ _1"></span> an<span class="_ _4"></span>d <span class="_ _1"></span>l<span class="_ _8"></span>o<span class="_ _1"></span>wer t<span class="_ _1"></span>r<span class="_ _1"></span>i<span class="_ _8"></span>gg<span class="_ _1"></span>er po<span class="_ _1"></span>ints. </div><div class="t m0 x1 h4 y10 ff1 fs2 fc0 sc0 ls5 wsc">The DS18B20 co<span class="_ _6"></span>mm<span class="_ _8"></span>u<span class="_ _6"></span>nicat<span class="_ _1"></span>es o<span class="_ _1"></span>ver <span class="ws6">a <span class="_ _7"></span><span class="ls0 ws0">1-<span class="ls4 ws5">W<span class="_ _1"></span>ir<span class="_ _6"></span>e<span class="_ _6"></span></span> <span class="_ _7"></span><span class="ls8 wsd">bu<span class="_ _1"></span>s<span class="_ _1"></span> </span></span></span></div><div class="t m0 x1 h4 y11 ff1 fs2 fc0 sc0 ls0 wse">t<span class="_ _1"></span>ha<span class="_ _4"></span>t<span class="_ _1"></span> by defini<span class="_ _8"></span>t<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _6"></span>n requ<span class="_ _1"></span>i<span class="_ _8"></span>r<span class="_ _1"></span>es o<span class="_ _1"></span>nly one dat<span class="_ _1"></span>a line (a<span class="_ _1"></span>nd </div><div class="t m0 x1 h4 y12 ff1 fs2 fc0 sc0 ls9 wsf">gr<span class="_ _8"></span>oun<span class="_ _8"></span>d)<span class="_ _4"></span> f<span class="_ _8"></span>or c<span class="_ _8"></span>om<span class="_ _8"></span>m<span class="_ _8"></span>uni<span class="_ _8"></span>ca<span class="_ _8"></span>t<span class="_ _1"></span>i<span class="_ _8"></span>on<span class="_ _8"></span> wi<span class="_ _8"></span>t<span class="_ _1"></span>h<span class="_ _4"></span> a<span class="_ _4"></span> c<span class="_ _4"></span>en<span class="_ _8"></span>tral<span class="_ _8"></span> </div><div class="t m0 x1 h4 y13 ff1 fs2 fc0 sc0 ls5 ws10">micro<span class="_ _1"></span>pro<span class="_ _1"></span>cessor<span class="_ _1"></span>.<span class="_ _1"></span> It has an o<span class="_ _1"></span>perat<span class="_ _6"></span>in<span class="_ _8"></span>g<span class="_ _1"></span> t<span class="_ _1"></span>e<span class="_ _1"></span>m<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>re </div><div class="t m0 x1 h4 y14 ff1 fs2 fc0 sc0 ls5 ws11">range o<span class="_ _6"></span>f<span class="_ _8"></span> <span class="ls0 ws0">-<span class="_ _1"></span><span class="ws12">55<span class="_ _1"></span>°C<span class="_ _4"></span> t<span class="_ _1"></span>o<span class="_ _1"></span> +125°<span class="_ _4"></span>C and<span class="ws0"> <span class="_ _9"> </span><span class="ls5 ws11">is accurat<span class="_ _6"></span>e to </span></span></span></span></div><div class="t m0 x1 h4 y15 ff3 fs2 fc0 sc0 ls0 ws0">±<span class="ff1">0.5</span>°<span class="ff1 ls5 ws13">C o<span class="_ _1"></span>ver <span class="_ _4"></span>t<span class="_ _1"></span>he range o<span class="_ _1"></span>f <span class="ls0 ws0">-<span class="ws14">10°<span class="_ _4"></span>C to +85°C. In </span></span></span></div><div class="t m0 x1 h4 y16 ff1 fs2 fc0 sc0 ls4 ws15">a<span class="_ _1"></span>d<span class="_ _6"></span>d<span class="_ _6"></span>it<span class="_ _5"></span>io<span class="_ _5"></span>n,<span class="_ _6"></span> t<span class="_ _5"></span>h<span class="_ _1"></span><span class="ls0 ws4">e DS18B20 ca<span class="_ _1"></span>n derive power d<span class="_ _1"></span>i<span class="_ _8"></span>r<span class="_ _1"></span>ect<span class="_ _1"></span>ly </span></div><div class="t m0 x1 h4 y17 ff1 fs2 fc0 sc0 ls5 ws16">f<span class="_ _4"></span>ro<span class="_ _6"></span>m<span class="_ _4"></span> t<span class="_ _1"></span>he data <span class="_ _1"></span>line (<span class="_ _1"></span>“parasi<span class="_ _4"></span>t<span class="_ _1"></span>e po<span class="_ _1"></span>wer<span class="_ _1"></span>”),<span class="_ _1"></span> eliminat<span class="_ _6"></span>in<span class="_ _8"></span>g<span class="_ _6"></span> </div><div class="t m0 x1 h4 y18 ff1 fs2 fc0 sc0 ls5 ws17">t<span class="_ _1"></span>he n<span class="_ _4"></span>eed <span class="_ _1"></span>f<span class="_ _4"></span>o<span class="_ _1"></span>r an externa<span class="_ _1"></span>l<span class="_ _8"></span> p<span class="_ _1"></span>o<span class="_ _1"></span>wer sup<span class="_ _1"></span>p<span class="_ _1"></span>ly<span class="_ _4"></span>. <span class="ls0 ws0"> </span></div><div class="t m0 x1 h4 y19 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y1a ff1 fs2 fc0 sc0 ls0 ws18">Each D<span class="_ _4"></span>S18B20 <span class="_ _1"></span>has a unique 64<span class="ws0">-<span class="ls5 ws19">bit ser<span class="_ _1"></span>ial co<span class="_ _1"></span>de,<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 y1b ff1 fs2 fc0 sc0 ls0 ws1a">which<span class="_ _4"></span> al<span class="_ _1"></span>l<span class="_ _8"></span>o<span class="_ _1"></span>ws mu<span class="_ _1"></span>l<span class="_ _8"></span>t<span class="_ _6"></span>iple DS18B20s<span class="_ _4"></span> t<span class="_ _1"></span>o f<span class="_ _8"></span>u<span class="_ _1"></span>nct<span class="_ _1"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n on </div><div class="t m0 x1 h4 y1c ff1 fs2 fc0 sc0 ls5 ws17">t<span class="_ _1"></span>he same 1<span class="ls0 ws0">-<span class="_ _1"></span>W<span class="ls8 ws1b">ir<span class="_ _1"></span>e bu<span class="_ _1"></span>s<span class="_ _1"></span></span>. <span class="_ _1"></span>T<span class="_ _1"></span><span class="ls4 ws1c">h<span class="_ _1"></span>u<span class="_ _6"></span>s<span class="_ _1"></span>,<span class="_ _6"></span> it<span class="_ _5"></span> i<span class="ls6 ws1d">s<span class="_ _1"></span> <span class="_ _1"></span>s<span class="_ _1"></span>imp<span class="_ _6"></span>le<span class="_ _1"></span> t<span class="_ _6"></span>o<span class="_ _6"></span> us<span class="_ _1"></span>e o<span class="_ _6"></span>ne </span></span></span></div><div class="t m0 x1 h4 y1d ff1 fs2 fc0 sc0 ls9 ws1e">mi<span class="_ _8"></span>c<span class="_ _4"></span>rop<span class="_ _8"></span>roc<span class="_ _8"></span>es<span class="_ _8"></span>s<span class="_ _4"></span>or <span class="_ _4"></span>to c<span class="_ _8"></span>on<span class="_ _8"></span>tr<span class="_ _8"></span>ol<span class="_ _8"></span> m<span class="_ _4"></span>an<span class="_ _4"></span>y<span class="_ _8"></span> DS<span class="_ _4"></span>18<span class="_ _8"></span>B2<span class="_ _8"></span>0s </div><div class="t m0 x1 h4 y1e ff1 fs2 fc0 sc0 ls5 ws1f">d<span class="_ _1"></span>i<span class="_ _8"></span>st<span class="_ _1"></span>r<span class="_ _6"></span>ib<span class="_ _4"></span>ut<span class="_ _1"></span>ed o<span class="_ _1"></span>ver a <span class="_ _1"></span>large<span class="_ _1"></span> area.<span class="_ _1"></span> <span class="_ _1"></span>App<span class="_ _1"></span>licat<span class="_ _1"></span>ions t<span class="_ _1"></span>hat<span class="_ _1"></span> </div><div class="t m0 x1 h4 y1f ff1 fs2 fc0 sc0 ls5 ws20">can benefi<span class="_ _8"></span>t<span class="_ _6"></span> fro<span class="_ _6"></span>m<span class="_ _8"></span> th<span class="_ _1"></span>is f<span class="_ _4"></span>eat<span class="_ _1"></span>ure include HVAC<span class="_ _1"></span> </div><div class="t m0 x1 h4 y20 ff1 fs2 fc0 sc0 ls5 ws13">enviro<span class="_ _1"></span>nment<span class="_ _1"></span>a<span class="_ _1"></span>l<span class="_ _4"></span> co<span class="_ _1"></span>ntro<span class="_ _1"></span>ls, t<span class="_ _1"></span>em<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>re <span class="_ _1"></span>m<span class="_ _4"></span>o<span class="_ _1"></span>ni<span class="_ _4"></span>t<span class="_ _1"></span>o<span class="_ _1"></span>r<span class="_ _1"></span>in<span class="_ _4"></span>g<span class="_ _1"></span> </div><div class="t m0 x1 h4 y21 ff1 fs2 fc0 sc0 ls6 ws21">s<span class="_ _1"></span>yst<span class="_ _6"></span>e<span class="_ _1"></span>ms in<span class="_ _1"></span>s<span class="_ _1"></span>id<span class="_ _1"></span>e<span class="_ _1"></span> bu<span class="_ _1"></span>i<span class="_ _1"></span>ld<span class="_ _6"></span>in<span class="_ _1"></span>g<span class="_ _1"></span>s,<span class="_ _1"></span> eq<span class="_ _1"></span>u<span class="_ _6"></span>ipme<span class="_ _6"></span>nt<span class="_ _1"></span><span class="ls0 ws0">,<span class="_ _1"></span> <span class="_ _a"> </span><span class="lsa ws22">o<span class="_ _1"></span>r </span></span></div><div class="t m0 x1 h4 y22 ff1 fs2 fc0 sc0 ls0 ws23">ma<span class="_ _4"></span>c<span class="_ _1"></span>hine<span class="_ _4"></span>r<span class="_ _1"></span>y<span class="_ _4"></span>,<span class="_ _1"></span> a<span class="_ _1"></span>nd pr<span class="ls9 ws24">oce<span class="_ _8"></span>ss<span class="_ _8"></span> <span class="_ _1"></span>m<span class="_ _8"></span>oni<span class="_ _8"></span>tor<span class="_ _4"></span>i<span class="_ _8"></span>n<span class="_ _4"></span>g an<span class="_ _8"></span>d c<span class="_ _8"></span>on<span class="_ _4"></span>trol<span class="_ _8"></span> </span></div><div class="t m0 x1 h4 y23 ff1 fs2 fc0 sc0 lsb ws25">syst<span class="_ _1"></span>e<span class="_ _6"></span>m<span class="_ _8"></span>s.<span class="_ _6"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h3 y24 ff2 fs1 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h3 y25 ff2 fs1 fc0 sc0 lsc ws26">FE<span class="_ _1"></span>ATU<span class="_ _1"></span>R<span class="_ _1"></span>ES<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h5 y26 ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1">Unique<span class="_ _4"></span> 1-<span class="lsd ws27">W<span class="_ _1"></span>ir<span class="_ _6"></span>e<span class="_ _1"></span></span>®<span class="ff5"> <span class="_ _1"></span></span><span class="lse ws28">Inter<span class="_ _1"></span>face R<span class="_ _1"></span>equ<span class="_ _1"></span>ires O<span class="_ _1"></span>nl<span class="_ _1"></span>y One </span></span></span></div><div class="t m0 x3 h5 y27 ff1 fs3 fc0 sc0 ls0 ws0">Port<span class="_ _4"></span> P<span class="_ _1"></span>in for Com<span class="_ _4"></span>munication </div><div class="t m0 x1 h5 y28 ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 lse ws28">Each De<span class="_ _1"></span>vice h<span class="_ _1"></span>as a U<span class="_ _1"></span>nique 64</span><span class="ff1">-<span class="lsf ws29">B<span class="_ _1"></span>it S<span class="_ _1"></span>er<span class="_ _1"></span>ial C<span class="_ _6"></span>ode </span></span></span></div><div class="t m0 x3 h5 y29 ff1 fs3 fc0 sc0 ls1 ws2a">S<span class="_ _1"></span>tor<span class="_ _1"></span>e<span class="_ _1"></span>d<span class="_ _1"></span> i<span class="_ _1"></span>n a<span class="_ _1"></span>n O<span class="_ _1"></span>n<span class="ls0 ws0">-B<span class="_ _1"></span>oa<span class="_ _4"></span>rd ROM </span></div><div class="t m0 x1 h5 y2a ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 lsf ws29">Multidr<span class="_ _1"></span>op C<span class="_ _1"></span>apab<span class="_ _6"></span>ility S<span class="_ _1"></span>imp<span class="_ _1"></span>lifies D<span class="_ _6"></span>istr<span class="_ _1"></span>ibuted </span></span></div><div class="t m0 x3 h5 y2b ff1 fs3 fc0 sc0 ls0 ws0">Tempe<span class="_ _4"></span>rature-<span class="lsf ws27">Se<span class="_ _1"></span>nsing App<span class="_ _1"></span>licat<span class="_ _1"></span>ions</span> <span class="_ _1"></span> </div><div class="t m0 x1 h5 y2c ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1">Requi<span class="_ _8"></span>r<span class="_ _1"></span>es N<span class="_ _1"></span>o <span class="ls1 ws1">Ext<span class="_ _6"></span>er<span class="_ _6"></span>na<span class="_ _1"></span>l C<span class="_ _6"></span>omp<span class="_ _6"></span>o<span class="_ _1"></span>ne<span class="_ _6"></span>nt<span class="_ _1"></span>s<span class="_ _1"></span></span> </span></span></div><div class="t m0 x1 h5 y2d ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 lse ws28">Can Be P<span class="_ _1"></span>owered <span class="_ _1"></span>fr<span class="_ _1"></span>om Data L<span class="_ _1"></span>ine<span class="_ _1"></span></span><span class="ff1">; Power Supply </span></span></div><div class="t m0 x3 h5 y2e ff1 fs3 fc0 sc0 ls0 ws0">Ran<span class="_ _4"></span>ge is 3.0V to 5.5V </div><div class="t m0 x1 h5 y2f ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 lse ws28">Meas<span class="_ _1"></span>ures<span class="_ _1"></span> Temperatur<span class="_ _1"></span>es <span class="_ _1"></span>fr<span class="_ _1"></span>om </span><span class="ff1">-55°C to<span class="_ _4"></span> +125°C </span></span></div><div class="t m0 x3 h5 y30 ff1 fs3 fc0 sc0 ls0 ws0">(-67°<span class="_ _4"></span>F t<span class="_ _1"></span>o +<span class="_ _4"></span>257<span class="_ _1"></span>°F) </div><div class="t m0 x1 h5 y31 ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff3">±<span class="ff1">0.5</span>°<span class="ff1 lse ws28">C Accurac<span class="_ _1"></span>y fr<span class="_ _1"></span>om </span><span class="ff1">-10°C to +85°<span class="_ _4"></span>C<span class="_ _1"></span> </span></span></span></div><div class="t m0 x1 h5 y32 ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 lse ws28">Therm<span class="_ _1"></span>ometer R<span class="_ _1"></span>es<span class="_ _1"></span>olutio<span class="_ _1"></span>n is Us<span class="_ _1"></span>er</span><span class="ff1"> <span class="lse ws28">S<span class="_ _1"></span>e<span class="_ _1"></span>le<span class="_ _4"></span>c<span class="_ _1"></span>tab<span class="_ _1"></span>le </span></span></span></div><div class="t m0 x3 h5 y33 ff1 fs3 fc0 sc0 lsf ws29">from 9 t<span class="_ _1"></span>o 12 B<span class="_ _1"></span>its<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h5 y34 ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1">Conve<span class="_ _4"></span>rts Temperature to 12-<span class="lsf ws27">Bit <span class="_ _4"></span>D<span class="_ _1"></span>igita<span class="_ _1"></span>l Word in </span></span></span></div><div class="t m0 x3 h5 y35 ff1 fs3 fc0 sc0 ls0 ws0">750ms (Max) </div><div class="t m0 x4 h5 y36 ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 ls2 ws2">User</span><span class="ff1">-Defi<span class="_ _8"></span>nable Nonvolatil<span class="_ _4"></span>e (NV) Alarm </span></span></div><div class="t m0 x5 h5 y37 ff1 fs3 fc0 sc0 lsf ws29">Sett<span class="_ _1"></span>ings<span class="ls0 ws0"> </span></div><div class="t m0 x4 h5 y38 ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 lsd ws27">A<span class="_ _1"></span>la<span class="_ _1"></span>r<span class="_ _1"></span>m<span class="_ _1"></span> <span class="ls10 ws2b">Sear<span class="_ _4"></span>ch<span class="_ _8"></span> <span class="ls0 ws0">C<span class="_ _1"></span>omm<span class="_ _4"></span>and Ident<span class="_ _1"></span>ifies an<span class="_ _8"></span>d </span></span></span></span></div><div class="t m0 x5 h5 y39 ff1 fs3 fc0 sc0 lse ws28">Addres<span class="_ _1"></span>ses<span class="_ _1"></span> Devices<span class="_ _1"></span> Whose T<span class="_ _1"></span>empera<span class="_ _1"></span>tur<span class="_ _1"></span>e <span class="_ _1"></span>is </div><div class="t m0 x5 h5 y3a ff1 fs3 fc0 sc0 ls0 ws0">Outside<span class="_ _4"></span> Pr<span class="_ _1"></span>ogra<span class="_ _4"></span>mmed Limits (Tem<span class="_ _4"></span>p<span class="_ _1"></span>erature<span class="_ _4"></span> </div><div class="t m0 x5 h5 y3b ff1 fs3 fc0 sc0 lsf ws29">Alarm C<span class="_ _1"></span>ond<span class="_ _1"></span>it<span class="_ _1"></span>ion)<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x4 h5 y3c ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 lsf ws29">Availab<span class="_ _6"></span>l<span class="_ _4"></span>e <span class="_ _1"></span>in 8<span class="ls0 ws0">-P<span class="_ _1"></span>in<span class="_ _4"></span> SO (150 <span class="lsf ws29">m<span class="_ _1"></span>il</span>s), 8-<span class="ls1 ws1">P<span class="_ _6"></span>in </span><span class="ff3">µ</span><span class="ls11 ws2c">SOP,</span> </span></span></span></div><div class="t m0 x5 h5 y3d ff1 fs3 fc0 sc0 ls1 ws1">and<span class="_ _1"></span> 3<span class="_ _1"></span><span class="ls0 ws0">-<span class="lsf ws29">P<span class="_ _6"></span>in TO</span>-<span class="lse ws28">92 P<span class="_ _1"></span>ackages<span class="_ _6"></span></span> </span></div><div class="t m0 x4 h5 y3e ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1">Soft<span class="_ _4"></span>ware Compatible<span class="_ _4"></span> w<span class="_ _1"></span>ith the DS1822 </span></span></div><div class="t m0 x4 h5 y3f ff4 fs3 fc0 sc0 ls0 ws0"><span class="ff5"> <span class="_ _b"> </span><span class="ff1 ws1">Appli<span class="_ _4"></span>cations Incl<span class="_ _8"></span>ude T<span class="_ _1"></span>he<span class="_ _4"></span>rmostat<span class="_ _1"></span>i<span class="_ _4"></span>c Con<span class="_ _4"></span>trols, </span></span></div><div class="t m0 x5 h5 y40 ff1 fs3 fc0 sc0 ls0 ws0">Industri<span class="_ _4"></span>al S<span class="_ _1"></span>y<span class="_ _4"></span>stems, Consumer Product<span class="_ _4"></span>s, </div><div class="t m0 x5 h5 y41 ff1 fs3 fc0 sc0 ls1 ws1">The<span class="_ _1"></span>r<span class="_ _6"></span>m<span class="_ _1"></span>om<span class="_ _1"></span>et<span class="_ _6"></span>er<span class="_ _1"></span>s<span class="_ _6"></span>, or<span class="_ _1"></span> <span class="_ _1"></span>A<span class="_ _1"></span>n<span class="_ _1"></span>y T<span class="_ _6"></span>her<span class="_ _1"></span>m<span class="_ _6"></span>a<span class="_ _1"></span>l<span class="_ _1"></span>ly S<span class="_ _6"></span>e<span class="_ _1"></span>ns<span class="_ _6"></span>it<span class="_ _1"></span>i<span class="_ _1"></span>v<span class="_ _1"></span>e<span class="_ _1"></span> </div><div class="t m0 x5 h5 y42 ff1 fs3 fc0 sc0 ls12 ws2a">S<span class="_ _6"></span>ys<span class="_ _6"></span>t<span class="_ _6"></span>e<span class="_ _1"></span>m<span class="_ _5"></span><span class="ls0 ws0"> </span></div><div class="t m0 x5 h5 y43 ff1 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h3 y44 ff2 fs1 fc0 sc0 ls13 ws2d">PIN CON<span class="_ _1"></span>FIGUR<span class="_ _1"></span>A<span class="_ _1"></span>TIONS<span class="_ _6"></span><span class="ls0 ws0"> </span></div><div class="t m0 x4 h2 y45 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y46 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y47 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y48 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y49 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y4a ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y4b ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y4c ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y4d ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y4e ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y4f ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y50 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y51 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y52 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y53 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y54 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x4 h2 y55 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="c x6 y56 w2 h6"><div class="t m0 x7 h7 y57 ff2 fs4 fc0 sc0 ls14 ws2e">DS18B<span class="_ _4"></span>20<span class="ls0 ws0"><span class="fc2 sc0"> </span></span></div><div class="t m0 x8 h7 y58 ff2 fs4 fc0 sc0 ls14 ws2f">Prog<span class="_ _4"></span>rammab<span class="_ _4"></span>le Re<span class="_ _8"></span>solution<span class="_ _8"></span><span class="ls0 ws0"><span class="fc2 sc0"> </span></span></div></div><div class="t m0 x9 h7 y59 ff2 fs4 fc0 sc0 ls0 ws0">1-</div><div class="c x6 y56 w2 h6"><div class="t m0 xa h7 y5a ff2 fs4 fc0 sc0 ls14 ws2f">Wire D<span class="_ _4"></span>igit<span class="_ _8"></span>al Thermom<span class="_ _8"></span>eter<span class="fc2 sc0"> </span><span class="_ _4"></span><span class="ff6 fs1 ls0 ws0"><span class="fc2 sc0"> </span></span></div></div><div class="c xb y5b w3 h8"><div class="t m0 xc h9 y5c ff2 fs0 fc0 sc0 ls2 ws2">TO<span class="ls0 ws0">-<span class="lsf ws29">92 </span> </span></div></div><div class="t m0 xd h9 y5d ff2 fs0 fc0 sc0 lsf ws29">(DS18B20)<span class="ls0 ws0"> </span></div><div class="c xe y5e w4 ha"><div class="t m0 xf hb y5f ff5 fs5 fc1 sc0 ls15 ws30">1 <span class="_ _4"></span> <span class="fc2 sc0"> </span><span class="ls0 ws0"><span class="fc2 sc0"> </span></span></div></div><div class="c x10 y60 w5 hc"><div class="t m0 x11 hd y61 ff5 fs6 fc0 sc0 ls0 ws31">(BOT<span class="_ _1"></span>TO<span class="_ _1"></span>M VIE<span class="_ _4"></span>W<span class="_ _6"></span>)<span class="ws0"> </span></div></div><div class="c x12 y5e w6 ha"><div class="t m0 xf hb y5f ff5 fs5 fc1 sc0 ls15 ws30">2 <span class="_ _4"></span> <span class="fc2 sc0"> </span><span class="ls0 ws0"><span class="fc2 sc0"> </span></span></div></div><div class="c x13 y5e w7 ha"><div class="t m0 xf hb y5f ff5 fs5 fc1 sc0 ls15 ws30">3 <span class="_ _4"></span> <span class="fc2 sc0"> </span><span class="ls0 ws0"><span class="fc2 sc0"> </span></span></div></div><div class="c x14 y62 w8 he"><div class="t m0 x0 h9 y63 ff2 fs0 fc1 sc0 ls0 ws0">MA<span class="_ _4"></span>XIM </div></div><div class="t m0 x14 h9 y64 ff2 fs0 fc1 sc0 lsf ws29">18B20<span class="ff6 fc0 ls0 ws0"> </span></div><div class="c x15 y65 w9 hf"><div class="t m0 xf h10 y66 ff5 fs0 fc1 sc0 ls0 ws0">1 </div></div><div class="c x14 y67 wa h11"><div class="t m1 x16 h10 y68 ff5 fs0 fc0 sc0 lsf ws29">GND<span class="ls0 ws0"> </span></div></div><div class="c x17 y69 wb h12"><div class="t m1 x16 h10 y6a ff5 fs0 fc0 sc0 lsf ws29">DQ<span class="ls0 ws0"> </span></div></div><div class="c x18 y6b wc h13"><div class="t m1 x16 h10 y68 ff5 fs0 fc0 sc0 ls0 ws0">V</div></div><div class="t m1 x19 h14 y6c ff5 fs7 fc0 sc0 ls16 ws32">DD</div><div class="c x18 y6b wc h13"><div class="t m1 x16 h10 y6d ff5 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x12 y65 w9 hf"><div class="t m0 xf h10 y66 ff5 fs0 fc1 sc0 ls0 ws0">2 </div></div><div class="c x13 y65 wd hf"><div class="t m0 xf h10 y66 ff5 fs0 fc1 sc0 ls0 ws0">3 </div></div><div class="c x1a y6e we h15"><div class="t m0 xc h9 y6f ff2 fs0 fc0 sc0 ls0 ws0">SO <span class="lsf ws33">(150 mil<span class="_ _1"></span>s)</span> </div></div><div class="t m0 x1b h9 y70 ff2 fs0 fc0 sc0 lsf ws29">(DS18B20Z<span class="_ _1"></span>) <span class="ls0 ws0"> </span></div><div class="c x1a y6e we h15"><div class="t m0 x1c h9 y71 ff2 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1c h9 y72 ff2 fs0 fc0 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x1d y73 wf h16"><div class="t m0 x16 h10 y74 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x1e y75 w10 h17"><div class="t m0 x11 h10 y76 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x1e y77 w11 h17"><div class="t m0 x11 h10 y78 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x1f y79 w12 h18"><div class="t m0 x11 h10 y7a ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x1f y7b w13 h19"><div class="t m0 x11 h10 y7c ff5 fs0 fc0 sc0 lsf ws29">GND<span class="ls0 ws0"> </span></div></div><div class="c x1d y22 wf h1a"><div class="t m0 x20 h10 y7d ff5 fs0 fc0 sc0 lsf ws29">DQ<span class="ls0 ws0"> </span></div></div><div class="c x1d y7e wf h1b"><div class="t m0 x21 h10 y7f ff5 fs0 fc0 sc0 ls0 ws0">V</div></div><div class="t m0 x22 h14 y80 ff5 fs7 fc0 sc0 ls16 ws32">DD</div><div class="c x1d y7e wf h1b"><div class="t m0 x23 h10 y7f ff5 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x1d y81 wf h16"><div class="t m0 x16 h10 y74 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x24 y7e w14 h1c"><div class="t m0 x11 hd y82 ff5 fs6 fc1 sc0 ls0 ws0">6 </div><div class="t m0 x25 hd y83 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x24 y84 w15 h1d"><div class="t m0 x11 hd y85 ff5 fs6 fc1 sc0 ls0 ws0">8 </div><div class="t m0 x11 hd y86 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="t m0 x26 hd y87 ff5 fs6 fc1 sc0 ls0 ws0">7 </div><div class="c x24 y88 w14 h1c"><div class="t m0 x11 hd y89 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x24 y8a w15 h1d"><div class="t m0 x11 hd y8b ff5 fs6 fc1 sc0 ls0 ws0">5 </div><div class="t m0 x11 hd y8c ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x27 y7e w14 h1c"><div class="t m0 x11 hd y82 ff5 fs6 fc1 sc0 ls0 ws0">3 </div><div class="t m0 x25 hd y83 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x27 y81 w16 h1d"><div class="t m0 x11 hd y85 ff5 fs6 fc1 sc0 ls0 ws0">1 </div><div class="t m0 x11 hd y86 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="t m0 x28 hd y87 ff5 fs6 fc1 sc0 ls0 ws0">2 </div><div class="c x27 y88 w14 h1c"><div class="t m0 x11 hd y89 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x27 y8a w16 h1d"><div class="t m0 x11 hd y8b ff5 fs6 fc1 sc0 ls0 ws0">4 </div><div class="t m0 x11 hd y8c ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x29 y8d w17 h1e"><div class="t m2 x2a h1f y8e ff2 fs2 fc1 sc0 ls17 ws34">MAXI<span class="_ _1"></span>M<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m2 x2b h1f y8f ff2 fs2 fc1 sc0 ls18 ws35">18B20<span class="_ _4"></span><span class="ls0 ws0"> </span></div></div><div class="c x1d y90 wf h16"><div class="t m0 x16 h10 y74 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x2c y91 w18 h19"><div class="t m0 x11 h10 y7c ff5 fs0 fc0 sc0 ls0 ws0">V</div></div><div class="t m0 x2d h14 y92 ff5 fs7 fc0 sc0 ls16 ws32">DD</div><div class="c x2c y91 w18 h19"><div class="t m0 x2e h10 y7c ff5 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x2c y93 w11 h20"><div class="t m0 x11 h10 y94 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="t m0 x2f h10 y95 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div><div class="c x30 y96 w19 h17"><div class="t m0 x11 h10 y76 ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x1d y97 wf h1a"><div class="t m0 x11 h10 y7d ff5 fs0 fc0 sc0 lsf ws29">GND<span class="ls0 ws0"> </span></div></div><div class="c x1d y98 wf h1b"><div class="t m0 x16 h10 y7f ff5 fs0 fc0 sc0 ls0 ws0">N.C. </div></div><div class="c x1d y99 wf h16"><div class="t m0 x20 h10 y74 ff5 fs0 fc0 sc0 lsf ws29">DQ<span class="ls0 ws0"> </span></div></div><div class="c x31 y9a w14 h1c"><div class="t m0 x11 hd y78 ff5 fs6 fc1 sc0 ls0 ws0">6 </div><div class="t m0 x25 hd y89 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x31 y9b w1a h1d"><div class="t m0 x11 hd y8b ff5 fs6 fc1 sc0 ls0 ws0">8 </div><div class="t m0 x11 hd y86 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="t m0 x32 hd y9c ff5 fs6 fc1 sc0 ls0 ws0">7 </div><div class="c x31 y93 w16 h21"><div class="t m0 x11 hd y89 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x31 y9d w1a h1d"><div class="t m0 x11 hd y8b ff5 fs6 fc1 sc0 ls0 ws0">5 </div><div class="t m0 x11 hd y8c ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="t m0 x33 hd y95 ff5 fs6 fc1 sc0 ls0 ws0">3 </div><div class="c x27 y9e w16 h1c"><div class="t m0 x25 hd y89 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x27 y9f w15 h1d"><div class="t m0 x11 hd y8b ff5 fs6 fc1 sc0 ls0 ws0">1 </div><div class="t m0 x11 hd y8c ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x27 y93 w14 h1c"><div class="t m0 x11 hd y78 ff5 fs6 fc1 sc0 ls0 ws0">2 </div><div class="t m0 x11 hd y89 ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x27 ya0 w1a h1d"><div class="t m0 x11 hd y8b ff5 fs6 fc1 sc0 ls0 ws0">4 </div><div class="t m0 x11 hd y8c ff5 fs6 fc1 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x34 ya1 w1b h22"><div class="t m2 x35 h1f y57 ff2 fs2 fc1 sc0 ls18 ws35">18B20<span class="_ _4"></span><span class="ls0 ws0"> </span></div></div><div class="c x36 ya2 w1c h8"><div class="t m0 x37 h9 ya3 ff3 fs0 fc0 sc1 ls0 ws0">µ<span class="ff2 sc0 ls1 ws1">SO<span class="_ _6"></span>P<span class="ls0 ws0"> </span></span></div></div><div class="t m0 x28 h9 ya4 ff2 fs0 fc0 sc0 lsf ws29">(DS18B20U)<span class="ls0 ws0"> </span></div><div class="c xb ya5 w1d h23"><div class="t m0 x11 h24 y7f ff7 fs6 fc0 sc0 ls0 ws0">1-<span class="ls19 ws36">Wir<span class="_ _1"></span>e <span class="_ _1"></span>is<span class="_ _1"></span> a r<span class="_ _1"></span>e<span class="_ _1"></span>g<span class="_ _1"></span>ist<span class="_ _1"></span>ere<span class="_ _1"></span>d tr<span class="_ _6"></span>ade<span class="_ _1"></span>mar<span class="_ _1"></span>k <span class="_ _1"></span>of <span class="_ _1"></span></span> <span class="ls19 ws37">M<span class="_ _1"></span>ax<span class="_ _6"></span>im Int<span class="_ _1"></span>egr<span class="_ _1"></span>at<span class="_ _1"></span>ed P<span class="_ _1"></span>ro<span class="_ _1"></span>duc<span class="_ _1"></span>ts<span class="_ _1"></span>, Inc<span class="_ _1"></span>.<span class="_ _1"></span></span> </div></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div> </body> </html>

<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/639f1c2b8449b3069de5f5dd/bg2.jpg"><div class="t m0 x1e h2 ya6 ff1 fs0 fc0 sc0 ls0 ws0">DS18B<span class="_ _8"></span>20 </div><div class="t m0 x1 h2 ya7 ff1 fs0 fc0 sc0 ls0 ws0"> <span class="_ _0"> </span>2 <span class="ls1 ws1">of <span class="_ _1"></span></span>22 <span class="_ _2"> </span> <span class="_ _c"> </span> </div><div class="t m0 x1 h3 ya8 ff2 fs1 fc0 sc0 ls1a ws38">ORDER<span class="ls13 ws2d">ING<span class="_ _1"></span><span class="ls0 ws0"> </span>INFOR<span class="_ _1"></span>M<span class="_ _1"></span>ATION<span class="_ _1"></span><span class="ls0 ws0"> </span></span></div><div class="c x38 ya9 w1e h25"><div class="t m0 x39 h26 y7c ff6 fs2 fc0 sc0 ls1b ws39">PART<span class="ls0 ws0"> </span></div></div><div class="c x3a ya9 w1f h25"><div class="t m0 x2e h26 y7c ff6 fs2 fc0 sc0 ls1b ws3a">TEMP RANGE<span class="ls0 ws0"> </span></div></div><div class="c x3b ya9 w20 h25"><div class="t m0 x3c h26 y7c ff6 fs2 fc0 sc0 ls1c ws3b">PIN<span class="ls0 ws0">-<span class="ls1b ws39">PACK<span class="_ _1"></span>AGE<span class="_ _1"></span></span> </span></div></div><div class="c x3d ya9 w1e h25"><div class="t m0 x3e h26 y7c ff6 fs2 fc0 sc0 ls1b ws3a">TOP MARK<span class="ls0 ws0"> </span></div></div><div class="t m0 x1 h4 yaa ff1 fs2 fc0 sc0 ls0 ws0">DS18B20 </div><div class="c x3a yab w1f h27"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55</div></div><div class="t m0 x3f h28 yac ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yab w1f h27"><div class="t m0 x40 h4 y7c ff1 fs2 fc0 sc0 ls0 ws3c">C to <span class="_ _1"></span>+125</div></div><div class="t m0 x41 h28 yac ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yab w1f h27"><div class="t m0 x42 h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">C<span class="_ _4"></span> </div></div><div class="c x3b yab w20 h27"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws0">3 <span class="ls1d ws3d">TO</span>-92 </div></div><div class="t m0 x43 h4 yaa ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div><div class="c x38 yad w1e h27"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20+ </div></div><div class="c x3a yad w1f h27"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div></div><div class="c x3b yad w20 h27"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws0">3 <span class="ls1d ws3d">TO</span>-92 </div></div><div class="c x3d yad w1e h27"><div class="t m0 x44 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yaf w1e h29"><div class="t m0 x3c h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">DS18B20/T&R </div></div><div class="t m0 x45 h4 yb0 ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div><div class="c x3b yaf w20 h29"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws3e">3 TO<span class="ws0">-92 (</span>2000 Pi<span class="_ _8"></span>ece<span class="ws0">)<span class="_ _1"></span> </span></div></div><div class="c x3d yaf w1e h29"><div class="t m0 x44 h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yb1 w1e h29"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20+T&R </div></div><div class="t m0 x45 h4 yb2 ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div><div class="c x3b yb1 w20 h29"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws0">3 <span class="ls1d ws3d">TO</span>-92 (<span class="ws3e">2000 Pi<span class="_ _8"></span>ece<span class="ws0">) </span></span></div></div><div class="c x3d yb1 w1e h29"><div class="t m0 x44 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yb3 w1e h29"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20-<span class="ls6 ws8">S<span class="_ _1"></span>L/<span class="_ _1"></span>T<span class="_ _1"></span>&R<span class="_ _6"></span></span> </div></div><div class="c x3a yb3 w1f h29"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55</div></div><div class="t m0 x3f h28 yb4 ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yb3 w1f h29"><div class="t m0 x40 h4 y7c ff1 fs2 fc0 sc0 ls0 ws3c">C to <span class="_ _1"></span>+125</div></div><div class="t m0 x41 h28 yb4 ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yb3 w1f h29"><div class="t m0 x42 h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">C<span class="_ _4"></span> </div></div><div class="c x3b yb3 w20 h29"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws3e">3 TO<span class="ws0">-</span>92 (2000 Pi<span class="_ _8"></span>ece)*<span class="ws0"> </span></div></div><div class="c x3d yb3 w1e h29"><div class="t m0 x44 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yb5 w1e h29"><div class="t m0 x3c h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">DS18B20-<span class="ls6 ws8">S<span class="_ _1"></span>L+<span class="_ _1"></span>T<span class="_ _1"></span>&R<span class="_ _1"></span></span> </div></div><div class="c x3a yb5 w1f h29"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div></div><div class="c x3b yb5 w20 h29"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws3e">3 TO<span class="ws0">-</span>92 (2000 Pi<span class="_ _8"></span>ece)*<span class="ws0"> </span></div></div><div class="c x3d yb5 w1e h29"><div class="t m0 x44 h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yb6 w1e h29"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20U </div></div><div class="c x3a yb6 w1f h29"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div></div><div class="c x3b yb6 w20 h29"><div class="t m0 x3c h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">8 <span class="ff3">µ</span><span class="ls1b ws39">SOP</span> </div></div><div class="c x3d yb6 w1e h29"><div class="t m0 x44 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yb7 w1e h29"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20U+ </div></div><div class="c x3a yb7 w1f h29"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div></div><div class="c x3b yb7 w20 h29"><div class="t m0 x3c h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">8 <span class="ff3">µ</span><span class="ls1b ws39">SOP</span> </div></div><div class="c x3d yb7 w1e h29"><div class="t m0 x44 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yb8 w1e h27"><div class="t m0 x3c h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">DS18B20U/T&R </div></div><div class="c x3a yb8 w1f h27"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55</div></div><div class="t m0 x3f h28 yb9 ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yb8 w1f h27"><div class="t m0 x40 h4 y7c ff1 fs2 fc0 sc0 ls0 ws3c">C to <span class="_ _1"></span>+125</div></div><div class="t m0 x41 h28 yb9 ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yb8 w1f h27"><div class="t m0 x42 h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">C<span class="_ _4"></span> </div></div><div class="c x3b yb8 w20 h27"><div class="t m0 x3c h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">8 </div></div><div class="t m0 x46 h28 yb9 ff3 fs2 fc0 sc0 ls0 ws0">µ</div><div class="c x3b yb8 w20 h27"><div class="t m0 x47 h4 y7c ff1 fs2 fc0 sc0 ls1b ws39">SOP<span class="ls0 ws0"> (<span class="ws3c">3000 Piece</span>) </span></div></div><div class="c x3d yb8 w1e h27"><div class="t m0 x44 h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="c x38 yba w1e h27"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20U+T&R </div></div><div class="c x3a yba w1f h27"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55</div></div><div class="t m0 x3f h28 ybb ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yba w1f h27"><div class="t m0 x40 h4 y7c ff1 fs2 fc0 sc0 ls0 ws3c">C to <span class="_ _1"></span>+125</div></div><div class="t m0 x41 h28 ybb ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yba w1f h27"><div class="t m0 x42 h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">C<span class="_ _4"></span> </div></div><div class="c x3b yba w20 h27"><div class="t m0 x3c h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">8 </div></div><div class="t m0 x46 h28 ybb ff3 fs2 fc0 sc0 ls0 ws0">µ</div><div class="c x3b yba w20 h27"><div class="t m0 x47 h4 y7c ff1 fs2 fc0 sc0 ls1b ws39">SOP<span class="ls0 ws0"> (3000 <span class="ls5 ws6">Piece</span>) </span></div></div><div class="c x3d yba w1e h27"><div class="t m0 x44 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">18B20 </div></div><div class="t m0 x1 h4 ybc ff1 fs2 fc0 sc0 ls0 ws0">DS18B20Z </div><div class="c x3a ybd w1f h27"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55</div></div><div class="t m0 x3f h28 ybe ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a ybd w1f h27"><div class="t m0 x40 h4 y7c ff1 fs2 fc0 sc0 ls0 ws3c">C to <span class="_ _1"></span>+125</div></div><div class="t m0 x41 h28 ybe ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a ybd w1f h27"><div class="t m0 x42 h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">C<span class="_ _4"></span> </div></div><div class="c x3b ybd w20 h27"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws0">8 <span class="ls18 ws35">SO</span> </div></div><div class="t m0 x48 h4 ybc ff1 fs2 fc0 sc0 ls0 ws0">DS18B20 </div><div class="c x38 ybf w1e h29"><div class="t m0 x3c h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">DS18B20Z+ </div></div><div class="c x3a ybf w1f h29"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div></div><div class="c x3b ybf w20 h29"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws3e">8 SO<span class="ws0"> </span></div></div><div class="c x3d ybf w1e h29"><div class="t m0 x37 h4 y7f ff1 fs2 fc0 sc0 ls0 ws0">DS18B20 </div></div><div class="c x38 yc0 w1e h29"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20Z/T&<span class="_ _4"></span>R </div></div><div class="c x3a yc0 w1f h29"><div class="t m0 x2e h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">-55</div></div><div class="t m0 x3f h28 yc1 ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yc0 w1f h29"><div class="t m0 x40 h4 y7c ff1 fs2 fc0 sc0 ls0 ws3c">C to <span class="_ _1"></span>+125</div></div><div class="t m0 x41 h28 yc1 ff3 fs2 fc0 sc0 ls0 ws0">°</div><div class="c x3a yc0 w1f h29"><div class="t m0 x42 h4 y7c ff1 fs2 fc0 sc0 ls0 ws0">C<span class="_ _4"></span> </div></div><div class="c x3b yc0 w20 h29"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws0">8 <span class="ls18 ws35">SO</span> (<span class="_ _1"></span><span class="ws3e">2500 Pi<span class="_ _8"></span>ece<span class="ws0">) </span></span></div></div><div class="c x3d yc0 w1e h29"><div class="t m0 x37 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20 </div></div><div class="c x38 yc2 w1e h29"><div class="t m0 x3c h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20Z+T&R </div></div><div class="t m0 x45 h4 yc3 ff1 fs2 fc0 sc0 ls0 ws0">-55<span class="ff3">°</span><span class="ws3c">C to<span class="_ _1"></span> <span class="_ _1"></span>+125</span><span class="ff3">°</span>C<span class="_ _8"></span> </div><div class="c x3b yc2 w20 h29"><div class="t m0 x3c h4 y7a ff1 fs2 fc0 sc0 ls0 ws0">8 <span class="ls18 ws35">SO</span> (<span class="_ _1"></span><span class="ws3e">2500 Pi<span class="_ _8"></span>ece<span class="ws0">) </span></span></div></div><div class="c x3d yc2 w1e h29"><div class="t m0 x37 h4 yae ff1 fs2 fc0 sc0 ls0 ws0">DS18B20 </div></div><div class="t m0 x1 h24 yc4 ff5 fs6 fc0 sc0 ls0 ws0">+<span class="ff7 ls19 ws36">De<span class="_ _1"></span>not<span class="_ _1"></span>es<span class="_ _1"></span> a<span class="_ _1"></span> <span class="_ _1"></span>lea<span class="_ _1"></span>d</span><span class="ff7">-<span class="ls19 ws37">fr<span class="_ _1"></span>ee p<span class="_ _1"></span>ac<span class="_ _1"></span>k<span class="_ _1"></span>age<span class="_ _1"></span>.</span> <span class="ls19 ws36">A <span class="_ _1"></span>“+<span class="_ _1"></span>” w<span class="_ _1"></span>il<span class="_ _1"></span>l a<span class="_ _1"></span>p<span class="_ _1"></span>pe<span class="_ _1"></span>ar<span class="_ _1"></span> o<span class="_ _1"></span>n <span class="_ _1"></span>th<span class="_ _1"></span>e t<span class="_ _1"></span>op <span class="_ _1"></span>m<span class="_ _1"></span>ark<span class="_ _1"></span> o<span class="_ _1"></span>f <span class="_ _1"></span>le<span class="_ _1"></span>ad</span>-<span class="ls19 ws36">f<span class="_ _1"></span>re<span class="_ _1"></span>e p<span class="_ _1"></span>ac<span class="_ _1"></span>k<span class="_ _1"></span>ag<span class="_ _1"></span>es<span class="_ _1"></span>.<span class="_ _1"></span></span> </span></div><div class="t m0 x1 h24 yc5 ff7 fs6 fc0 sc0 ls1e ws3f">T&<span class="_ _4"></span>R = Ta<span class="_ _4"></span>pe<span class="_ _4"></span> and r<span class="_ _4"></span>eel<span class="_ _4"></span>.<span class="ls0 ws0"> </span></div><div class="t m0 x1 h24 yc6 ff7 fs6 fc0 sc0 ls0 ws0">*<span class="ls1f ws40">TO</span>-<span class="ls19 ws41">92 pac<span class="_ _1"></span>k<span class="_ _1"></span>a<span class="_ _1"></span>ges<span class="_ _1"></span> in ta<span class="ws42">pe <span class="_ _1"></span>an<span class="_ _1"></span>d re<span class="_ _1"></span>e<span class="_ _1"></span>l ca<span class="_ _1"></span>n b<span class="_ _1"></span>e or<span class="_ _1"></span>der<span class="_ _1"></span>e<span class="_ _1"></span>d w<span class="_ _6"></span>ith s<span class="_ _1"></span>tra<span class="_ _1"></span>ig<span class="_ _1"></span>ht or<span class="_ _1"></span> f<span class="_ _1"></span>o<span class="_ _1"></span>rme<span class="_ _1"></span>d <span class="_ _1"></span>lea<span class="_ _1"></span>ds<span class="_ _1"></span>. Ch<span class="_ _1"></span>oos<span class="_ _1"></span>e </span></span>“<span class="_ _1"></span>SL<span class="_ _1"></span>” <span class="_ _1"></span><span class="ls19 ws42">f<span class="_ _1"></span>or s<span class="_ _1"></span>tr<span class="_ _1"></span>ai<span class="_ _1"></span>ght<span class="_ _1"></span></span> <span class="_ _6"></span><span class="ls19 ws43">lea<span class="_ _1"></span>d</span>s<span class="_ _1"></span>. <span class="_ _1"></span><span class="ls20 ws44">B<span class="_ _6"></span>u<span class="_ _6"></span>lk<span class="_ _1"></span> T<span class="_ _6"></span>O<span class="_ _1"></span></span>-<span class="ls19 ws42">9<span class="_ _1"></span>2 or<span class="_ _1"></span>de<span class="_ _1"></span>rs<span class="_ _1"></span> ar<span class="_ _1"></span>e s<span class="_ _1"></span>tr<span class="_ _1"></span>a<span class="_ _1"></span>igh<span class="_ _1"></span>t<span class="_ _1"></span> </span></div><div class="t m0 x1 h24 yc7 ff7 fs6 fc0 sc0 ls1e ws3f">le<span class="_ _8"></span>ads onl<span class="_ _8"></span>y.</div><div class="t m0 x49 h4 yc8 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yc9 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h3 yca ff2 fs1 fc0 sc0 ls13 ws0">PIN DE<span class="_ _1"></span>SCR<span class="_ _1"></span>IPT<span class="_ _1"></span>ION<span class="ls0"> <span class="_ _1"></span><span class="ff6 fs2"> </span></span></div><div class="t m0 x4a h26 ycb ff6 fs2 fc0 sc0 ls1c ws3b">PIN<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x4b h26 ycc ff6 fs2 fc0 sc0 ls1b ws39">NAME<span class="ls0 ws0"> <span class="_ _d"> </span></span>FUNCTION<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x4c h26 y75 ff6 fs2 fc0 sc0 ls18 ws35">SO<span class="ls0 ws0"> </span></div><div class="c x4d ycd w21 h2a"><div class="t m0 x16 h28 y7a ff3 fs2 fc0 sc1 ls0 ws0">µ</div></div><div class="t m0 x4e h26 yce ff6 fs2 fc0 sc0 ls21 ws45">SOP<span class="_ _8"></span><span class="ls0 ws0"> </span></div><div class="t m0 x4f h26 y75 ff6 fs2 fc0 sc0 ls17 ws34">TO<span class="ls0 ws0">-92 </span></div><div class="t m0 x8 h4 ycf ff1 fs2 fc0 sc0 ls22 ws0">1, 2<span class="_ _8"></span>, 6, </div><div class="t m0 x50 h4 yd0 ff1 fs2 fc0 sc0 ls0 ws3e">7, 8<span class="ws0"> </span></div><div class="t m0 x51 h4 ycf ff1 fs2 fc0 sc0 ls22 ws0">2, 3<span class="_ _8"></span>, 5, </div><div class="t m0 x52 h4 yd0 ff1 fs2 fc0 sc0 ls0 ws3e">6, 7<span class="ws0"> </span></div><div class="t m0 x53 h4 yd1 ff1 fs2 fc0 sc0 ls0 ws0">— <span class="_ _e"> </span><span class="ls1b ws39">N.C</span>. <span class="_ _f"> </span><span class="ls9 ws3c">N<span class="_ _4"></span>o C<span class="_ _8"></span>on<span class="_ _8"></span>ne<span class="_ _8"></span>cti<span class="_ _8"></span>on<span class="_ _4"></span><span class="ls0 ws0"> </span></span></div><div class="t m0 x2 h4 yd2 ff1 fs2 fc0 sc0 ls0 ws0">3 <span class="_ _10"> </span>8 <span class="_ _11"> </span>3 <span class="_ _11"> </span>V</div><div class="t m0 x54 h2b yd3 ff1 fs6 fc0 sc0 ls23 ws31">DD</div><div class="t m0 x55 h4 yd2 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x56 h4 yd4 ff1 fs2 fc0 sc0 ls4 ws1c">O<span class="_ _1"></span>p<span class="_ _6"></span>t<span class="_ _6"></span>io<span class="_ _5"></span>na<span class="_ _5"></span>l V</div><div class="t m0 x57 h2b yd5 ff1 fs6 fc0 sc0 ls23 ws31">DD</div><div class="t m0 x58 h4 yd4 ff1 fs2 fc0 sc0 ls22 ws0">. V</div><div class="t m0 x59 h2b yd5 ff1 fs6 fc0 sc0 ls23 ws31">DD</div><div class="t m0 x5a h4 yd4 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="ws3e">m<span class="_ _4"></span>ust<span class="_ _1"></span> be gr<span class="_ _4"></span>ounded for operati<span class="_ _4"></span>on in </span></div><div class="t m0 x56 h4 yd6 ff1 fs2 fc0 sc0 ls5 ws17">paras<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>e po<span class="_ _1"></span>wer m<span class="_ _4"></span>o<span class="_ _1"></span>de.<span class="ls0 ws0"> </span></div><div class="t m0 x2 h4 yd7 ff1 fs2 fc0 sc0 ls0 ws0">4 <span class="_ _10"> </span>1 <span class="_ _11"> </span>2 <span class="_ _12"> </span><span class="ls1b ws39">DQ</span> </div><div class="t m0 x56 h4 yd8 ff1 fs2 fc0 sc0 ls8 wse">Da<span class="_ _1"></span>t<span class="_ _6"></span>a<span class="_ _1"></span> I<span class="_ _1"></span>np<span class="_ _1"></span>ut<span class="_ _6"></span>/<span class="_ _1"></span>Out<span class="_ _6"></span>p<span class="_ _1"></span>ut<span class="_ _6"></span><span class="ls24 wsd">. Op<span class="_ _1"></span>en<span class="ls0 ws0">-</span><span class="ls8">d<span class="_ _1"></span>r<span class="_ _1"></span>a<span class="_ _6"></span>in <span class="ls0 ws0">1-<span class="ls6 ws8">W<span class="_ _1"></span>ir<span class="_ _1"></span>e<span class="_ _1"></span></span> <span class="_ _1"></span><span class="ls5 ws17">inter<span class="_ _6"></span>f<span class="_ _8"></span>ace p<span class="_ _6"></span>in. Also </span></span></span></span></div><div class="t m0 x56 h4 yd7 ff1 fs2 fc0 sc0 ls0 ws3e">pro<span class="_ _1"></span>vi<span class="_ _8"></span>des po<span class="_ _1"></span>wer to <span class="_ _8"></span>t<span class="_ _1"></span>he devi<span class="_ _4"></span>ce when us<span class="_ _4"></span>ed in pa<span class="_ _4"></span>ra<span class="_ _1"></span>site power </div><div class="t m0 x56 h4 yd9 ff1 fs2 fc0 sc0 ls5 ws17">m<span class="_ _8"></span>o<span class="_ _1"></span>d<span class="_ _1"></span>e (see <span class="ls8 wsd">t<span class="_ _6"></span>he <span class="_ _1"></span><span class="ff8 ls0 ws3e">Powering the D<span class="ws0">S18B20 </span></span><span class="ls4 ws5">s<span class="_ _6"></span>e<span class="_ _1"></span>c<span class="_ _1"></span>t<span class="_ _6"></span>io<span class="_ _5"></span>n.<span class="_ _6"></span>)<span class="_ _6"></span> <span class="_ _1"></span><span class="ls0 ws0"> </span></span></span></div><div class="t m0 x2 h4 yda ff1 fs2 fc0 sc0 ls0 ws0">5 <span class="_ _10"> </span>4 <span class="_ _11"> </span>1 <span class="_ _13"> </span><span class="ls1b ws39">GND</span> <span class="_ _14"> </span><span class="ls8 wsd">Gr<span class="_ _6"></span>o<span class="_ _1"></span>u<span class="_ _1"></span>nd<span class="_ _1"></span></span> </div><div class="t m0 x1 h4 ydb ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h3 ydc ff2 fs1 fc0 sc0 ls3 ws3">OVERVIEW<span class="ls0 ws0"> </span></div><div class="t m0 x1 h4 ydd ff1 fs2 fc0 sc0 ls0 ws0">Figure <span class="_ _6"></span>1 <span class="_ _15"></span><span class="ws4">shows a bl<span class="_ _4"></span>o<span class="_ _1"></span>ck d<span class="_ _1"></span>iagram o<span class="_ _6"></span>f<span class="_ _8"></span> t<span class="_ _1"></span>he DS18B20, a<span class="_ _1"></span>nd pin descript<span class="_ _1"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>ns are<span class="_ _1"></span> g<span class="_ _1"></span>iven in <span class="ls5 ws6">the <span class="_ _15"></span><span class="ff8 lsb ws46">Pin D<span class="_ _1"></span>e<span class="_ _1"></span>scri<span class="_ _6"></span>pti<span class="_ _1"></span><span class="ls0 ws0">on<span class="_ _1"></span><span class="ff1"> </span></span></span></span></span></div><div class="t m0 x1 h4 yde ff1 fs2 fc0 sc0 ls4 ws5">t<span class="_ _6"></span>a<span class="_ _6"></span>b<span class="_ _1"></span>le<span class="_ _6"></span><span class="ls8 wse">.<span class="_ _1"></span> T<span class="_ _1"></span>he<span class="_ _1"></span> 6<span class="_ _1"></span>4<span class="_ _1"></span><span class="ls0 ws0">-<span class="_ _1"></span><span class="ls5 ws17">b<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span> ROM st<span class="_ _1"></span>o<span class="_ _1"></span>r<span class="_ _1"></span>es <span class="_ _4"></span>t<span class="_ _1"></span>he device’s u<span class="_ _1"></span>nique <span class="_ _1"></span>ser<span class="_ _1"></span>ial code.<span class="_ _1"></span> T<span class="_ _1"></span>he scratchp<span class="_ _1"></span>ad <span class="_ _1"></span>memor<span class="_ _1"></span>y<span class="_ _4"></span> co<span class="_ _1"></span>nta<span class="_ _1"></span>ins t<span class="_ _1"></span>he 2<span class="ls0 ws0">-<span class="_ _1"></span><span class="ls25 ws47">b<span class="_ _6"></span>yt<span class="_ _6"></span>e<span class="_ _6"></span> </span></span></span></span></span></div><div class="t m0 x1 h4 ydf ff1 fs2 fc0 sc0 ls5 ws48">t<span class="_ _1"></span>em<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>re r<span class="_ _1"></span>eg<span class="_ _1"></span>i<span class="_ _4"></span>ster<span class="_ _1"></span> t<span class="_ _1"></span>hat<span class="_ _1"></span> s<span class="_ _4"></span>to<span class="_ _1"></span>r<span class="_ _1"></span>es t<span class="_ _1"></span>he di<span class="_ _4"></span>g<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>a<span class="_ _1"></span>l out<span class="_ _6"></span>put from the te<span class="_ _1"></span>mperat<span class="_ _1"></span>ure senso<span class="_ _1"></span>r<span class="_ _1"></span>. I<span class="_ _1"></span>n add<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>ion, t<span class="_ _1"></span>he scrat<span class="_ _1"></span>chpad<span class="_ _1"></span> </div><div class="t m0 x1 h4 ye0 ff1 fs2 fc0 sc0 ls5 ws49">pro<span class="_ _1"></span>v<span class="_ _1"></span>i<span class="_ _8"></span>d<span class="_ _1"></span>es access t<span class="_ _1"></span>o the 1<span class="ls0 ws0">-<span class="ws4a">by<span class="_ _4"></span>t<span class="_ _1"></span>e upp<span class="ls5 ws49">er and lower<span class="_ _1"></span> alarm trigger reg<span class="_ _1"></span>ist<span class="_ _1"></span>ers (<span class="_ _1"></span>T</span></span></span></div><div class="t m0 x5b h2b ye1 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 x5c h4 ye0 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_"> </span><span class="ls8 ws14">a<span class="_ _1"></span>nd<span class="_ _1"></span> T</span></div><div class="t m0 x29 h2b ye1 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 x5d h4 ye0 ff1 fs2 fc0 sc0 ls0 ws0">) <span class="_ _16"> </span><span class="ls8 ws14">and<span class="_ _1"></span> t<span class="_ _6"></span>he<span class="_ _1"></span> 1</span>-<span class="ls25 ws47">b<span class="_ _6"></span>yt<span class="_ _5"></span>e<span class="_ _6"></span> </span></div><div class="t m0 x1 h4 ye2 ff1 fs2 fc0 sc0 ls5 ws16">co<span class="_ _1"></span>nfigurat<span class="_ _1"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n reg<span class="_ _1"></span>ister.<span class="_ _1"></span> T<span class="_ _1"></span>he configurat<span class="_ _1"></span>ion reg<span class="_ _1"></span>ister<span class="_ _1"></span> a<span class="_ _1"></span>ll<span class="_ _8"></span>o<span class="_ _1"></span>w<span class="_ _1"></span>s t<span class="_ _1"></span>he user to<span class="_ _1"></span> set the reso<span class="_ _1"></span>l<span class="_ _4"></span>ut<span class="_ _6"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n o<span class="_ _1"></span>f the temperat<span class="_ _6"></span>ure<span class="ls0 ws0">-</span></div><div class="t m0 x1 h4 ye3 ff1 fs2 fc0 sc0 ls21 ws45">to<span class="ls0 ws0">-<span class="_ _1"></span><span class="ws18">di<span class="_ _8"></span>g<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>a<span class="_ _1"></span>l c<span class="_ _4"></span>o<span class="_ _1"></span>nversi<span class="_ _8"></span>o<span class="_ _6"></span>n to<span class="_ _1"></span> 9, 10,<span class="_ _1"></span> 11, or 12 bits. T<span class="_ _1"></span>he T</span></span></div><div class="t m0 x5e h2b ye4 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 x5f h4 ye3 ff1 fs2 fc0 sc0 ls22 ws4b">, T</div><div class="t m0 x60 h2b ye4 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 x61 h4 ye3 ff1 fs2 fc0 sc0 ls0 ws0">, <span class="_ _7"> </span><span class="ls5 ws19">and<span class="_ _1"></span> co<span class="_ _1"></span>nfigurat<span class="_ _6"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n</span></div><div class="t m0 x62 h2b ye4 ff1 fs6 fc0 sc0 ls0 ws0"> </div><div class="t m0 x63 h4 ye3 ff1 fs2 fc0 sc0 ls6 ws8">r<span class="_ _1"></span>eg<span class="_ _6"></span>is<span class="ls5 ws19">t<span class="_ _6"></span>ers are <span class="_ _1"></span>non<span class="_ _1"></span>volat<span class="_ _6"></span>ile </span></div><div class="t m0 x1 h4 ye5 ff1 fs2 fc0 sc0 ls5 ws17">(E<span class="_ _1"></span>EP<span class="_ _1"></span>ROM), so they<span class="_ _4"></span> w<span class="_ _1"></span>ill reta<span class="_ _1"></span>in data when the device <span class="_ _1"></span>i<span class="_ _4"></span>s po<span class="_ _1"></span>wered<span class="_ _1"></span> down.<span class="ls0 ws0"> </span></div><div class="t m0 x1 h4 ye6 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 ye7 ff1 fs2 fc0 sc0 ls0 ws4c">The DS18B20 uses <span class="ls6 ws8">M<span class="_ _1"></span>a<span class="_ _1"></span>x<span class="_ _1"></span>im’<span class="_ _1"></span>s<span class="_ _6"></span> <span class="_ _15"></span><span class="ls7 ws4d">ex<span class="_ _4"></span>cl<span class="_ _8"></span>usi<span class="_ _8"></span>ve <span class="_ _15"></span><span class="ls0 ws0">1-<span class="_ _1"></span><span class="ls4 ws5">W<span class="_ _6"></span>ir<span class="_ _6"></span>e<span class="_ _6"></span></span> <span class="_ _17"></span><span class="ls6 ws4e">bu<span class="_ _1"></span>s<span class="_ _1"></span> p<span class="_ _1"></span>r<span class="_ _1"></span>o<span class="_ _1"></span>t<span class="_ _1"></span>o<span class="_ _1"></span>co<span class="_ _6"></span>l t<span class="_ _1"></span>ha<span class="_ _1"></span>t<span class="_ _6"></span> <span class="_ _1"></span>imp<span class="_ _1"></span>le<span class="_ _6"></span>me<span class="_ _1"></span>nt<span class="_ _6"></span>s bu<span class="_ _6"></span>s c<span class="_ _1"></span>o<span class="_ _6"></span>mmu<span class="_ _6"></span>n<span class="_ _1"></span>ica<span class="_ _1"></span>t<span class="_ _5"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n <span class="_ _1"></span>u<span class="_ _1"></span>s<span class="_ _6"></span>ing<span class="_ _6"></span> </span></span></span></span></div><div class="t m0 x1 h4 ye8 ff1 fs2 fc0 sc0 ls5 ws16">o<span class="_ _1"></span>ne control signal. T<span class="_ _1"></span>he cont<span class="_ _1"></span>ro<span class="_ _1"></span>l li<span class="_ _4"></span>ne requ<span class="_ _6"></span>i<span class="_ _8"></span>r<span class="_ _1"></span>es a weak<span class="_ _1"></span> pullup resist<span class="_ _1"></span>o<span class="_ _1"></span>r since all devices are <span class="_ _1"></span>linked to<span class="_ _6"></span> <span class="_ _4"></span>t<span class="_ _1"></span>he b<span class="_ _4"></span>u<span class="_ _1"></span>s<span class="_ _1"></span> </div><div class="t m0 x1 h4 ye9 ff1 fs2 fc0 sc0 ls5 ws4f">via a <span class="_ _8"></span><span class="ls0 ws0">3-<span class="_ _1"></span><span class="ls5 ws50">st<span class="_ _1"></span>at<span class="_ _1"></span>e or<span class="_ _1"></span> o<span class="_ _1"></span>pen</span>-<span class="ws24">drain port (t<span class="_ _1"></span>he DQ<span class="_ _4"></span> p<span class="_ _1"></span>in in t<span class="_ _1"></span>he case o<span class="_ _1"></span>f<span class="_ _8"></span> t<span class="_ _6"></span>h<span class="_ _4"></span>e DS18B20).<span class="_ _1"></span> In t<span class="_ _1"></span>his bus system, t<span class="_ _1"></span>he<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 yea ff1 fs2 fc0 sc0 ls5 ws17">micro<span class="_ _1"></span>pro<span class="_ _1"></span>cessor<span class="_ _1"></span> (<span class="_ _4"></span>t<span class="_ _1"></span>he mas<span class="_ _4"></span>t<span class="_ _1"></span>er d<span class="_ _1"></span>evice) <span class="_ _1"></span>i<span class="_ _8"></span>d<span class="_ _1"></span>e<span class="_ _1"></span>nt<span class="_ _1"></span>ifies and add<span class="_ _1"></span>resses de<span class="_ _1"></span>vices o<span class="_ _1"></span>n the bus using each de<span class="_ _1"></span>vice’s uniqu<span class="_ _1"></span>e<span class="_ _1"></span> </div><div class="t m0 x1 h4 yeb ff1 fs2 fc0 sc0 ls0 ws0">64-bi<span class="_ _8"></span><span class="ls5 ws16">t<span class="_ _6"></span> co<span class="_ _1"></span>de. Because each de<span class="_ _1"></span>vice has a unique cod<span class="_ _1"></span>e, the number o<span class="_ _1"></span>f devices t<span class="_ _1"></span>hat can b<span class="_ _4"></span>e addr<span class="_ _1"></span>essed o<span class="_ _1"></span>n one<span class="_ _1"></span> </span></div><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>

<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/639f1c2b8449b3069de5f5dd/bg3.jpg"><div class="t m0 x1e h2 ya6 ff1 fs0 fc0 sc0 ls0 ws0">DS18B<span class="_ _8"></span>20 </div><div class="t m0 x1 h4 ya7 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _18"> </span><span class="fs0">3 <span class="ls1 ws1">of <span class="_ _1"></span></span>22<span class="fs6"> </span></span></div><div class="t m0 x1 h4 yec ff1 fs2 fc0 sc0 ls0 wse">bus i<span class="_ _4"></span>s vi<span class="_ _4"></span>rt<span class="_ _1"></span>ua<span class="_ _1"></span>lly<span class="_ _8"></span> u<span class="_ _1"></span>nlimi<span class="_ _8"></span>t<span class="_ _1"></span>ed.<span class="_ _1"></span> <span class="ls8 wsd">T<span class="_ _1"></span>he<span class="_ _1"></span> </span><span class="ws0">1-<span class="_ _1"></span><span class="ls6 ws8">W<span class="_ _1"></span>ir<span class="_ _1"></span>e<span class="_ _6"></span></span> <span class="_ _1"></span><span class="ws3e">bus proto<span class="_ _1"></span>col<span class="_ _8"></span>,<span class="_ _1"></span> <span class="_ _1"></span>including deta<span class="_ _1"></span>il<span class="_ _8"></span>ed<span class="_ _1"></span> e<span class="_ _1"></span>xplanat<span class="_ _1"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>ns o<span class="_ _6"></span>f<span class="_ _8"></span> t<span class="_ _1"></span>he co<span class="_ _6"></span>mm<span class="_ _8"></span>a<span class="_ _1"></span>nds and<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 yed ff1 fs2 fc0 sc0 ls5 ws17">“t<span class="_ _1"></span>im<span class="_ _4"></span>e slot<span class="_ _1"></span>s,<span class="_ _1"></span>” is covered <span class="_ _1"></span>in<span class="_ _4"></span> t<span class="_ _1"></span>he <span class="ff8 ls0 ws0">1-<span class="lsb ws51">Wire B<span class="_ _1"></span>us S<span class="_ _1"></span>yste<span class="_ _1"></span>m</span><span class="ff1"> <span class="lsb ws25">se<span class="_ _1"></span><span class="ls4 ws5">c<span class="_ _1"></span>t<span class="_ _5"></span>io<span class="_ _6"></span>n<span class="_ _1"></span></span></span>.<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 yee ff1 fs2 fc0 sc0 ls5 wsc">Anot<span class="_ _1"></span>her <span class="_ _1"></span>featur<span class="_ _1"></span>e o<span class="_ _1"></span>f<span class="_ _4"></span> t<span class="_ _1"></span>he DS18B20 <span class="_ _1"></span>is the a<span class="_ _1"></span>bilit<span class="_ _1"></span>y to<span class="_ _6"></span> <span class="_ _4"></span>o<span class="_ _1"></span>perat<span class="_ _1"></span>e wi<span class="_ _4"></span>t<span class="_ _1"></span>hout<span class="_ _6"></span> an<span class="_ _4"></span> exter<span class="_ _1"></span>nal po<span class="_ _1"></span>wer supp<span class="_ _6"></span>ly<span class="_ _8"></span>.<span class="_ _1"></span> Po<span class="_ _1"></span>w<span class="_ _1"></span>er <span class="_ _1"></span>is </div><div class="t m0 x1 h4 yef ff1 fs2 fc0 sc0 ls0 ws52">ins<span class="_ _4"></span>t<span class="_ _1"></span>ead supplied t<span class="_ _1"></span>hrough the <span class="ws0">1-<span class="ls4 ws5">W<span class="_ _6"></span>ir<span class="_ _6"></span>e<span class="_ _6"></span></span> <span class="_ _15"></span></span>pullup resist<span class="_ _1"></span>o<span class="_ _1"></span>r vi<span class="_ _4"></span>a the DQ p<span class="_ _1"></span>in w<span class="_ _1"></span>hen the <span class="_ _1"></span>bus is high. The <span class="_ _1"></span>high bus </div><div class="t m0 x1 h4 yf0 ff1 fs2 fc0 sc0 ls7 ws16">si<span class="_ _8"></span>gnal<span class="_ _19"></span> als<span class="_ _8"></span>o ch<span class="_ _8"></span>arg<span class="_ _8"></span>es an<span class="_ _8"></span> <span class="_ _1"></span>i<span class="_ _4"></span>n<span class="_ _8"></span>tern<span class="_ _4"></span><span class="ls5 ws53">al capac<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>o<span class="_ _1"></span>r<span class="_ _1"></span> (C</span></div><div class="t m0 x64 h2b yf1 ff1 fs6 fc0 sc0 ls19 ws43">PP</div><div class="t m0 x65 h4 yf0 ff1 fs2 fc0 sc0 ls8 ws52">)<span class="_ _1"></span>,<span class="_ _1"></span> w<span class="_ _1"></span>h<span class="_ _1"></span>ic<span class="_ _6"></span>h t<span class="_ _6"></span>he<span class="_ _1"></span>n <span class="_ _1"></span>su<span class="_ _1"></span>p<span class="_ _1"></span>p<span class="_ _6"></span>lie<span class="_ _6"></span>s p<span class="_ _1"></span>o<span class="_ _6"></span>w<span class="_ _1"></span>er<span class="_ _6"></span> to<span class="_ _6"></span> t<span class="_ _1"></span>he<span class="_ _1"></span> d<span class="_ _1"></span>e<span class="_ _1"></span>v<span class="_ _1"></span>ic<span class="_ _1"></span>e<span class="_ _1"></span> w<span class="_ _6"></span>he<span class="_ _1"></span>n t<span class="_ _6"></span>he<span class="_ _1"></span> <span class="_ _1"></span>bu<span class="_ _1"></span>s <span class="_ _6"></span>i<span class="_ _1"></span>s<span class="_ _1"></span> </div><div class="t m0 x1 h4 yf2 ff1 fs2 fc0 sc0 ls0 ws24">l<span class="_ _8"></span>o<span class="_ _1"></span>w. T<span class="_ _1"></span>his me<span class="_ _4"></span>t<span class="_ _1"></span>hod of<span class="_ _4"></span> der<span class="_ _1"></span>ivi<span class="_ _8"></span>ng po<span class="_ _1"></span>wer from<span class="_ _4"></span> t<span class="_ _1"></span>he<span class="_ _4"></span> <span class="ws0">1-<span class="ls4 ws5">W<span class="_ _6"></span>ir<span class="_ _6"></span>e<span class="_ _6"></span></span> <span class="_ _1a"> </span><span class="ls5 ws50">bus <span class="_ _1"></span>i<span class="_ _8"></span>s r<span class="_ _1"></span>e<span class="_ _1"></span>ferred t<span class="_ _1"></span>o as “parasite po<span class="_ _1"></span>wer<span class="_ _1"></span>.” As an </span></span></div><div class="t m0 x1 h4 yf3 ff1 fs2 fc0 sc0 ls8 wse">a<span class="_ _1"></span>lt<span class="_ _1"></span>e<span class="_ _1"></span>r<span class="_ _1"></span>na<span class="_ _1"></span>t<span class="_ _5"></span>ive,<span class="_ _6"></span> t<span class="_ _6"></span>he D<span class="_ _1"></span>S<span class="_ _1"></span>1<span class="_ _1"></span>8<span class="_ _1"></span>B<span class="_ _1"></span>2<span class="_ _1"></span>0 ma<span class="_ _1"></span>y a<span class="_ _6"></span>lso<span class="_ _6"></span> be<span class="_ _1"></span> p<span class="_ _1"></span>o<span class="_ _6"></span>we<span class="_ _1"></span>r<span class="_ _1"></span>e<span class="_ _1"></span>d<span class="_ _1"></span> b<span class="_ _1"></span>y a<span class="_ _1"></span>n e<span class="_ _1"></span>xt<span class="_ _6"></span>e<span class="_ _1"></span>r<span class="_ _1"></span>na<span class="_ _6"></span>l su<span class="_ _1"></span>p<span class="_ _1"></span>p<span class="_ _6"></span>ly o<span class="_ _6"></span>n V</div><div class="t m0 x66 h2b yf4 ff1 fs6 fc0 sc0 ls23 ws31">DD</div><div class="t m0 x67 h4 yf3 ff1 fs2 fc0 sc0 ls0 ws0">. </div><div class="t m0 x1 h1f yf5 ff2 fs2 fc0 sc0 ls1d ws3d">Figu<span class="_ _4"></span>re<span class="_ _4"></span><span class="ls0 ws0"> 1<span class="ls21 ws45">. <span class="ls18">DS18B20 Bl<span class="_ _8"></span>ock Diagram<span class="_ _8"></span> <span class="ls0 ws0"> </span></span></span></span></div><div class="t m0 x1 h4 yf6 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yf7 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yf8 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yf9 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yfa ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yfb ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yfc ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 yfd ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 yfe ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 yff ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y100 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y101 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y102 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y103 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y104 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y105 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y106 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y107 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y108 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h3 y109 ff2 fs1 fc0 sc0 ls13 ws2d">OPER<span class="_ _1"></span>ATION<span class="_ _1"></span><span class="ls0 ws0">—<span class="ls1a ws54">ME<span class="_ _1"></span>ASURING TEMPE<span class="_ _1"></span>R<span class="_ _1"></span>ATURE</span> </span></div><div class="t m0 x1 h4 y10a ff1 fs2 fc0 sc0 ls5 ws55">The co<span class="_ _1"></span>re funct<span class="_ _1"></span>ionalit<span class="_ _1"></span>y o<span class="_ _1"></span>f the DS18B20 <span class="_ _1"></span>is its d<span class="_ _1"></span>ire<span class="_ _1"></span>ct<span class="_ _1"></span><span class="ls0 ws0">-<span class="ls21 ws45">to</span>-</span>di<span class="_ _8"></span>g<span class="_ _6"></span>i<span class="_ _8"></span>t<span class="_ _1"></span>a<span class="_ _1"></span>l t<span class="_ _1"></span>e<span class="_ _1"></span>m<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>re senso<span class="_ _1"></span>r<span class="_ _1"></span>. The reso<span class="_ _6"></span>l<span class="_ _8"></span>ut<span class="_ _1"></span>ion of t<span class="_ _1"></span>he<span class="_ _1"></span> </div><div class="t m0 x1 h4 y10b ff1 fs2 fc0 sc0 ls5 ws9">t<span class="_ _1"></span>em<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>re sensor<span class="_ _1"></span> is user<span class="ls0 ws0">-configurab<span class="ws1a">le to<span class="_ _1"></span> 9, 10<span class="_ _4"></span>, 11, or 12 bi<span class="_ _8"></span>t<span class="_ _1"></span>s, corresponding to in<span class="_ _8"></span>cre<span class="_ _1"></span>ments o<span class="_ _1"></span>f<span class="_ _4"></span> 0.5<span class="ff3 ws0">°</span><span class="ls17 ws34">C,<span class="_ _1"></span> </span></span></span></div><div class="t m0 x1 h4 y10c ff1 fs2 fc0 sc0 ls0 ws0">0.25<span class="ff3">°</span><span class="wse">C, 0.<span class="_ _1"></span>125</span><span class="ff3">°</span><span class="wse">C<span class="_ _4"></span>, and 0.0625<span class="ff3 ws0">°</span><span class="ls5 ws48">C, respect<span class="_ _6"></span>iv<span class="_ _8"></span>e<span class="_ _1"></span>l<span class="_ _1"></span>y<span class="_ _8"></span>.<span class="_ _1"></span> T<span class="_ _1"></span>he de<span class="_ _1"></span>faul<span class="_ _8"></span>t<span class="_ _6"></span> reso<span class="_ _6"></span>l<span class="_ _8"></span>u<span class="_ _1"></span>t<span class="_ _1"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n at po<span class="_ _1"></span>wer<span class="_ _1"></span><span class="ls0 ws0">-<span class="wse">up i<span class="_ _4"></span>s 12<span class="ws0">-</span>bi<span class="_ _8"></span>t<span class="_ _1"></span>.<span class="_ _1"></span> The DS18B20<span class="_ _1"></span> </span></span></span></span></div><div class="t m0 x1 h4 y10d ff1 fs2 fc0 sc0 ls5 ws6">po<span class="_ _1"></span>wers<span class="ls0 ws0"> <span class="_ _5"></span><span class="ws52">up in<span class="_ _4"></span> <span class="_ _4"></span>a l<span class="_ _8"></span>o<span class="_ _1"></span>w<span class="ws0">-<span class="ls5 ws53">p<span class="_ _1"></span>o<span class="_ _1"></span>wer <span class="_ _1"></span>idle stat<span class="_ _1"></span>e</span>.<span class="_ _1"></span> <span class="_ _5"></span>T<span class="ls5 ws53">o ini<span class="_ _4"></span>t<span class="_ _6"></span>i<span class="_ _8"></span>at<span class="_ _1"></span>e a<span class="_ _1"></span> t<span class="_ _6"></span>em<span class="_ _8"></span>per<span class="_ _1"></span>at<span class="_ _1"></span>ur<span class="_ _1"></span>e <span class="_ _1"></span>m<span class="_ _8"></span>ea<span class="_ _1"></span>sur<span class="_ _1"></span>e<span class="_ _1"></span>ment<span class="_ _1"></span> and A<span class="ls0 ws0">-<span class="ls26 ws56">to<span class="_ _4"></span><span class="ls0 ws0">-<span class="ls8 ws52">D<span class="_ _1"></span> c<span class="_ _1"></span>o<span class="_ _6"></span>nver<span class="_ _1"></span>s<span class="_ _6"></span>io<span class="_ _6"></span>n,<span class="_ _6"></span> t<span class="_ _1"></span>he<span class="_ _1"></span> </span></span></span></span></span></span></span></span></div><div class="t m0 x1 h4 y10e ff1 fs2 fc0 sc0 ls5 ws57">mast<span class="_ _1"></span>er must<span class="_ _1"></span> <span class="_ _1"></span>i<span class="_ _4"></span>ssue a<span class="_ _1"></span> Co<span class="_ _1"></span>nvert<span class="_ _1"></span> T<span class="_ _1"></span> [4<span class="_ _1"></span>4h] co<span class="_ _1"></span>mm<span class="_ _4"></span>a<span class="_ _1"></span>nd. <span class="_ _1"></span>Fo<span class="_ _1"></span>ll<span class="_ _8"></span>o<span class="_ _1"></span>w<span class="_ _1"></span>ing t<span class="_ _1"></span>he co<span class="_ _1"></span>nver<span class="_ _1"></span>sion, t<span class="_ _1"></span>he re<span class="_ _1"></span>su<span class="_ _1"></span>l<span class="_ _4"></span>t<span class="_ _6"></span>in<span class="_ _8"></span>g<span class="_ _1"></span> t<span class="_ _6"></span>herm<span class="_ _4"></span>a<span class="_ _1"></span>l dat<span class="_ _1"></span>a i<span class="_ _1"></span>s </div><div class="t m0 x1 h4 y10f ff1 fs2 fc0 sc0 ls5 ws57">sto<span class="_ _1"></span>red in the 2<span class="_ _1"></span><span class="ls0 ws0">-<span class="ws52">by<span class="_ _8"></span>t<span class="_ _1"></span>e<span class="_ _1"></span> t<span class="_ _1"></span>e<span class="_ _1"></span>m<span class="_ _4"></span>perat<span class="_ _1"></span>ure register <span class="_ _1"></span>in<span class="_ _8"></span> t<span class="_ _1"></span>he scr<span class="_ _1"></span>at<span class="_ _1"></span>chpa<span class="_ _4"></span>d <span class="_ _1"></span>m<span class="_ _8"></span>e<span class="_ _1"></span>m<span class="_ _4"></span>or<span class="_ _6"></span>y<span class="_ _4"></span> and t<span class="_ _1"></span>he DS18B20 retur<span class="_ _1"></span>ns<span class="_ _4"></span> t<span class="_ _1"></span>o<span class="_ _1"></span> i<span class="_ _8"></span>t<span class="_ _1"></span>s <span class="_ _1"></span>i<span class="_ _8"></span>d<span class="_ _1"></span>le<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 y110 ff1 fs2 fc0 sc0 ls26 ws56">s<span class="_ _8"></span>ta<span class="_ _4"></span>te<span class="_ _4"></span>. <span class="_ _5"></span><span class="ls0 ws52">If<span class="_ _4"></span> t<span class="_ _1"></span>he DS18B<span class="_ _4"></span>20 <span class="_ _1"></span>i<span class="_ _8"></span>s po<span class="_ _1"></span>wered<span class="ws0"> <span class="_ _5"></span><span class="ls8 wsd">b<span class="_ _1"></span>y <span class="_ _15"></span><span class="ws4c">a<span class="_ _6"></span>n e<span class="_ _1"></span>xt<span class="_ _6"></span>er<span class="_ _6"></span>na<span class="_ _1"></span>l <span class="_ _1"></span>s<span class="_ _1"></span>u<span class="_ _1"></span>p<span class="_ _1"></span>p<span class="_ _6"></span>ly,<span class="_ _1"></span> <span class="ls5 ws57">t<span class="_ _1"></span>he mast<span class="_ _1"></span>er can issue <span class="_ _1"></span>“read t<span class="_ _1"></span>ime s<span class="_ _1"></span>l<span class="_ _8"></span>o<span class="_ _1"></span>t<span class="_ _6"></span>s” (see t<span class="_ _1"></span>he <span class="_ _19"></span><span class="ls0 ws0"> </span></span></span></span></span></span></div><div class="t m0 x1 h4 y111 ff8 fs2 fc0 sc0 ls0 ws0">1-<span class="lsb ws58">Wire B<span class="_ _1"></span>u<span class="_ _1"></span>s S<span class="_ _1"></span>yst<span class="_ _1"></span>em</span><span class="ff1"> <span class="_ _5"></span><span class="wse">sec<span class="_ _4"></span>t<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>n) after t<span class="_ _1"></span>he C<span class="_ _4"></span>o<span class="_ _1"></span>nvert<span class="_ _1"></span> T comm<span class="_ _4"></span>and and t<span class="_ _1"></span>he DS18B20 w<span class="_ _1"></span>ill<span class="_ _8"></span> r<span class="_ _1"></span>espo<span class="_ _1"></span>nd by transmitt<span class="_ _1"></span>ing </span></span></div><div class="t m0 x1 h4 y112 ff1 fs2 fc0 sc0 ls5 ws16">0 while t<span class="_ _1"></span>he t<span class="_ _1"></span>e<span class="_ _1"></span>mperat<span class="_ _1"></span>ure co<span class="_ _1"></span>nversi<span class="_ _4"></span>o<span class="_ _6"></span>n is <span class="_ _1"></span>in pro<span class="_ _1"></span>gr<span class="_ _1"></span>ess and 1<span class="ls0 ws0"> <span class="_ _6"></span><span class="ls8 ws4">w<span class="_ _6"></span>he<span class="_ _1"></span>n t<span class="_ _6"></span>he<span class="_ _1"></span> <span class="_ _1"></span>c<span class="_ _1"></span>o<span class="_ _1"></span>n<span class="_ _1"></span>ve<span class="_ _1"></span>r<span class="_ _1"></span>s<span class="_ _6"></span>io<span class="_ _6"></span>n is<span class="_ _1"></span> d<span class="_ _1"></span>o<span class="_ _6"></span>n</span><span class="ws1b">e.<span class="_ _1"></span> I<span class="_ _1"></span>f<span class="_ _4"></span> t<span class="_ _1"></span>he DS18B20 is<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 y113 ff1 fs2 fc0 sc0 ls0 ws3e">power<span class="_ _1"></span>ed wi<span class="_ _8"></span>t<span class="_ _1"></span>h parasite power,<span class="_ _1"></span> this not<span class="_ _1"></span>if<span class="_ _4"></span>ic<span class="_ _4"></span>at<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>n technique<span class="_ _4"></span> c<span class="_ _1"></span>annot be used since the <span class="_ _1"></span>bus<span class="_ _4"></span> <span class="_ _1"></span>must be pulled hig<span class="_ _1"></span>h </div><div class="t m0 x1 h4 y114 ff1 fs2 fc0 sc0 ls8 ws1b">by <span class="_ _1"></span>a<span class="_ _1"></span> s<span class="_ _1"></span>t<span class="_ _6"></span>r<span class="_ _1"></span>o<span class="_ _6"></span>ng<span class="ls0 ws0"> <span class="_ _6"></span><span class="ls5 ws48">pu<span class="_ _1"></span>ll<span class="_ _4"></span>up dur<span class="_ _6"></span>ing t<span class="_ _1"></span>he e<span class="_ _1"></span>nt<span class="_ _1"></span>ire te<span class="_ _1"></span>mperat<span class="_ _1"></span>ure co<span class="_ _1"></span>nversio<span class="_ _1"></span>n. T<span class="_ _1"></span>he bu<span class="_ _1"></span>s requ<span class="_ _1"></span>irement<span class="_ _1"></span>s <span class="_ _1"></span>f<span class="_ _4"></span>o<span class="_ _1"></span>r par<span class="_ _1"></span>as<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>e p<span class="_ _1"></span>o<span class="_ _1"></span>wer ar<span class="_ _1"></span>e<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 y115 ff1 fs2 fc0 sc0 ls6 ws1d">exp<span class="_ _6"></span>la<span class="_ _1"></span>in<span class="_ _1"></span>e<span class="_ _1"></span>d<span class="_ _1"></span> <span class="_ _1"></span>in de<span class="_ _1"></span>t<span class="_ _6"></span>a<span class="_ _1"></span>il <span class="_ _1"></span>in t<span class="_ _6"></span><span class="ls8 wsd">he <span class="_ _1"></span><span class="ff8 ls0 ws0">Po<span class="_ _1"></span>wer<span class="_ _4"></span>ing t<span class="ws3e">he DS18B<span class="_ _1"></span>20</span><span class="ff1"> <span class="ls5 ws6">sect<span class="_ _1"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n<span class="ls0 ws0">.<span class="fs0"> </span></span></span></span></span></span></div><div class="t m0 x1 h4 y116 ff1 fs2 fc0 sc0 ls0 ws18">The DS18B20 output tem<span class="_ _8"></span>perat<span class="_ _1"></span>ur<span class="_ _1"></span>e da<span class="_ _4"></span>t<span class="_ _1"></span>a i<span class="_ _8"></span>s calibrat<span class="_ _1"></span>ed in<span class="_ _4"></span> degrees <span class="ls6 ws8">Ce<span class="_ _1"></span>ls<span class="_ _6"></span>iu<span class="_ _1"></span>s<span class="_ _6"></span><span class="ls5 ws19">; f<span class="_ _4"></span>o<span class="_ _1"></span>r Fahrenhe<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span> app<span class="_ _1"></span>licat<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>ns, a<span class="_ _1"></span> </span></span></div><div class="t m0 x1 h4 y117 ff1 fs2 fc0 sc0 ls5 ws48">l<span class="_ _8"></span>o<span class="_ _1"></span>o<span class="_ _6"></span>kup table o<span class="_ _1"></span>r co<span class="_ _1"></span>nv<span class="_ _8"></span>er<span class="_ _1"></span>s<span class="_ _1"></span>i<span class="_ _8"></span>o<span class="_ _6"></span>n ro<span class="_ _1"></span>ut<span class="_ _1"></span>in<span class="_ _4"></span>e must<span class="_ _1"></span> be used. T<span class="_ _1"></span>he temperat<span class="_ _1"></span>u<span class="_ _1"></span>re dat<span class="_ _1"></span>a i<span class="_ _8"></span>s st<span class="_ _1"></span>o<span class="_ _1"></span>r<span class="_ _1"></span>ed as a 16<span class="ls0 ws0">-<span class="ls4 ws1c">b<span class="_ _1"></span>it<span class="_ _5"></span> s<span class="_ _6"></span><span class="ws5">ig<span class="_ _6"></span>n<span class="_ _1"></span></span></span>-<span class="ls8 wsd">e<span class="_ _6"></span>xt<span class="_ _6"></span>end<span class="_ _1"></span>e<span class="_ _6"></span>d<span class="_ _6"></span> </span></span></div><div class="t m0 x1 h4 y118 ff1 fs2 fc0 sc0 ls5 wsc">t<span class="_ _1"></span>wo’s co<span class="_ _1"></span>m<span class="_ _8"></span>p<span class="_ _1"></span>le<span class="_ _1"></span>ment nu<span class="_ _1"></span>mber <span class="_ _1"></span>in<span class="_ _4"></span> t<span class="_ _1"></span>he temperat<span class="_ _6"></span>ure r<span class="_ _1"></span>egi<span class="_ _4"></span>st<span class="_ _1"></span>er (<span class="_ _1"></span>see <span class="ls0 ws0">Figure <span class="_ _17"></span>2</span>).<span class="_ _1"></span> T<span class="_ _1"></span>he si<span class="_ _8"></span>g<span class="_ _1"></span>n <span class="_ _1"></span>bi<span class="_ _4"></span>t<span class="_ _1"></span>s (S)<span class="_ _1"></span> in<span class="_ _4"></span>d<span class="_ _1"></span>icate <span class="_ _1"></span>if<span class="_ _4"></span> t<span class="_ _1"></span>he<span class="_ _1"></span> </div><div class="t m0 x1 h4 y119 ff1 fs2 fc0 sc0 ls5 ws55">t<span class="_ _1"></span>em<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>re is po<span class="_ _1"></span>sit<span class="_ _1"></span>iv<span class="_ _4"></span>e o<span class="_ _1"></span>r negat<span class="_ _6"></span>iv<span class="_ _4"></span>e: <span class="_ _1"></span>f<span class="_ _4"></span>o<span class="_ _1"></span>r po<span class="_ _6"></span>si<span class="_ _8"></span>t<span class="_ _6"></span>iv<span class="_ _4"></span>e <span class="_ _1"></span>nu<span class="_ _1"></span>mbers S = 0 and <span class="_ _1"></span>f<span class="_ _4"></span>o<span class="_ _1"></span>r negat<span class="_ _6"></span>iv<span class="_ _4"></span>e nu<span class="_ _1"></span>mbers S = 1.<span class="_ _1"></span> If t<span class="_ _1"></span>he </div><div class="t m0 x1 h4 y11a ff1 fs2 fc0 sc0 ls1b ws39">DS18<span class="ls0 ws52">B20 <span class="_ _1"></span>is<span class="_ _4"></span> configured f<span class="_ _4"></span>o<span class="_ _1"></span>r 12<span class="ws0">-<span class="ls5 ws57">bit r<span class="_ _1"></span>eso<span class="_ _1"></span>lut<span class="_ _1"></span>ion, a<span class="_ _1"></span>ll<span class="_ _4"></span> <span class="_ _1"></span>b<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>s in t<span class="_ _1"></span>he te<span class="_ _1"></span>mperat<span class="_ _1"></span>ure r<span class="_ _1"></span>eg<span class="_ _1"></span>i<span class="_ _4"></span>st<span class="_ _1"></span>er w<span class="_ _1"></span>ill cont<span class="_ _1"></span>a<span class="_ _1"></span>in<span class="_ _4"></span> <span class="_ _1"></span>valid <span class="_ _1"></span>dat<span class="_ _1"></span>a. </span></span></span></div><div class="t m0 x1 h4 y11b ff1 fs2 fc0 sc0 ls27 ws59">Fo<span class="_ _1"></span>r<span class="_ _1"></span> 1<span class="_ _1"></span>1<span class="_ _1"></span><span class="ls0 ws0">-<span class="ws52">bi<span class="_ _4"></span>t<span class="_ _1"></span> resolut<span class="_ _1"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>n, bi<span class="_ _8"></span>t<span class="_ _1"></span> 0 <span class="_ _1"></span>is undefined. For 10<span class="ws0">-</span>bit reso<span class="_ _1"></span>l<span class="_ _4"></span>ut<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>n, bi<span class="_ _8"></span>t<span class="_ _1"></span>s 1 <span class="_ _1"></span>and 0 are un<span class="_ _4"></span>d<span class="_ _1"></span>efined, and f<span class="_ _4"></span>o<span class="_ _1"></span>r 9<span class="ws0">-<span class="ls4 ws5">b<span class="_ _6"></span>it<span class="_ _5"></span> </span></span></span></span></div><div class="t m0 x1 h4 y11c ff1 fs2 fc0 sc0 ls4 ws5a">r<span class="_ _6"></span>e<span class="_ _1"></span>s<span class="_ _1"></span>o<span class="_ _5"></span>lu<span class="_ _1"></span>t<span class="_ _15"></span>io<span class="_ _6"></span>n<span class="_ _1"></span> <span class="_ _1"></span>b<span class="_ _1"></span>it<span class="_ _5"></span>s<span class="_ _1"></span> 2<span class="_ _6"></span>,<span class="_ _6"></span> 1<span class="_ _1"></span><span class="ls0 ws0">,<span class="_ _1"></span> <span class="_ _1b"> </span><span class="ws14">and 0 are undefined. <span class="ls5 ws6">Tab<span class="_ _1"></span>le <span class="_ _16"> </span></span></span>1 <span class="_ _16"> </span><span class="ls7 ws49">giv<span class="_ _8"></span>es ex<span class="_ _8"></span>am<span class="_ _4"></span>pl<span class="_ _4"></span>es<span class="_ _4"></span> of<span class="_ _8"></span> di<span class="_ _4"></span>gi<span class="_ _8"></span>tal<span class="_ _4"></span> outpu<span class="_ _19"></span>t<span class="_ _1"></span> da<span class="_ _8"></span>ta a<span class="_ _8"></span>n<span class="_ _4"></span>d th<span class="_ _8"></span>e </span></span></div><div class="t m0 x1 h4 y11d ff1 fs2 fc0 sc0 ls5 ws17">co<span class="_ _1"></span>rrespo<span class="_ _1"></span>nding temperat<span class="_ _6"></span>ure read<span class="_ _1"></span>in<span class="_ _4"></span>g <span class="_ _1"></span>f<span class="_ _4"></span>o<span class="_ _1"></span>r 12<span class="_ _1"></span><span class="ls0 ws0">-<span class="ls8 wse">bit<span class="_ _1"></span> r<span class="_ _1"></span>e<span class="_ _1"></span>s<span class="_ _1"></span>o<span class="_ _6"></span>lut<span class="_ _6"></span>io<span class="_ _1"></span>n c<span class="_ _1"></span>o<span class="_ _6"></span>nve<span class="_ _1"></span>r<span class="_ _1"></span>s<span class="_ _6"></span>io<span class="_ _6"></span>ns.<span class="_ _1"></span> </span> </span></div><div class="t m0 x1 h4 y11e ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="c x4c y11f w22 h2c"><div class="t m0 x68 h10 y120 ff5 fs0 fc0 sc0 ls0 ws0">V</div></div><div class="t m0 x69 h14 y121 ff5 fs7 fc0 sc0 ls28 ws5b">PU</div><div class="c x4c y11f w22 h2c"><div class="t m0 x3e h10 y120 ff5 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x50 y122 w23 h2c"><div class="t m0 x0 hd y123 ff5 fs6 fc0 sc0 ls19 ws43">4.7<span class="_ _1"></span>k<span class="ls0 ws0"> </span></div></div><div class="t m0 x6a h2d y124 ff2 fs8 fc0 sc0 ls29 ws5c">POWER<span class="_ _1"></span><span class="ls0 ws0">-</span></div><div class="t m0 x6a h2d y125 ff2 fs8 fc0 sc0 ls29 ws5c">SUPPL<span class="_ _1"></span>Y </div><div class="t m0 x3f h2d y126 ff2 fs8 fc0 sc0 ls29 ws5c">SENS<span class="_ _1"></span>E<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="c x6b y127 w24 h2e"><div class="t m0 xf h2d y128 ff2 fs8 fc0 sc0 ls13 ws2d">64<span class="ls0 ws0">-<span class="ls2a ws5d">BI<span class="_ _1"></span>T<span class="_ _1"></span> R<span class="_ _6"></span>OM<span class="_ _1"></span> </span></span></div></div><div class="t m0 x6 h2d y129 ff2 fs8 fc0 sc0 ls2a ws5e">AND<span class="_ _6"></span><span class="ls0 ws0"> </span></div><div class="t m0 x6c h2f y12a ff2 fs8 fc0 sc0 ls0 ws0">1-W<span class="ls2b ws5f">ire<span class="_ _1"></span> PORT<span class="_ _6"></span></span><span class="ff6 fs6"> </span></div><div class="c x6d y12b w25 h30"><div class="t m0 x11 h10 y12c ff5 fs0 fc0 sc0 lsf ws29">DQ<span class="ls0 ws0"> </span></div></div><div class="c x6e y12d w26 h23"><div class="t m0 x11 h10 y12e ff5 fs0 fc0 sc0 ls0 ws0">V</div><div class="t m0 x21 h14 y74 ff5 fs7 fc0 sc0 ls16 ws32">DD</div><div class="t m0 x2e h10 y12e ff5 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x6f y12f w27 h31"><div class="t m0 x35 h2d y130 ff2 fs8 fc0 sc0 ls2c ws38">INTERNA<span class="_ _4"></span>L<span class="_ _1"></span> V</div></div><div class="t m0 x70 h32 y131 ff2 fs9 fc0 sc0 ls2d ws60">DD</div><div class="c x6f y12f w27 h31"><div class="t m0 x8 h2d y130 ff2 fs8 fc0 sc0 ls0 ws0"> <span class="fc2 sc0"> </span></div></div><div class="t m0 x71 hd y132 ff5 fs6 fc0 sc0 ls0 ws0">C</div><div class="t m0 x3a h33 y133 ff5 fsa fc0 sc0 ls0 ws0">PP</div><div class="t m0 x72 hd y132 ff5 fs6 fc0 sc0 ls0 ws0"> </div><div class="t m0 x53 h2d y134 ff2 fs8 fc0 sc0 ls2e ws61">PA<span class="_ _8"></span>R<span class="_ _1"></span>A<span class="_ _4"></span>SI<span class="_ _8"></span>TE POWE<span class="_ _8"></span>R </div><div class="c x73 y135 w28 h34"><div class="t m0 x47 h4 y12e ff2 fs8 fc0 sc0 ls2c ws62">CIRCUIT<span class="ff1 fs2 ls0 ws0"> </span></div><div class="t m0 x74 h4 y136 ff1 fs2 fc0 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div><div class="t m0 x74 h35 y137 ff6 fs8 fc0 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x17 y138 w29 ha"><div class="t m0 x75 h2d y5a ff2 fs8 fc0 sc0 ls2c ws38">MEM<span class="_ _1"></span>ORY CONTROL<span class="ls0 ws0"> </span></div><div class="t m0 x76 h2d y12e ff2 fs8 fc0 sc0 ls2b ws63">LOG<span class="_ _1"></span>I<span class="_ _1"></span>C<span class="ff6 ls0 ws0"> </span></div></div><div class="c x77 y139 w2a h36"><div class="t m0 x0 h2d y13a ff2 fs8 fc0 sc0 ls2c ws62">SCRA<span class="_ _4"></span>T<span class="_ _1"></span>CHPAD<span class="ls0 ws0"> </span></div></div><div class="t m0 x78 h2d y13b ff2 fs8 fc0 sc0 ls0 ws0"> </div><div class="c x79 y13c w2b h2c"><div class="t m0 x3c h2f y5f ff2 fs8 fc0 sc0 ls0 ws0">8-<span class="ls2c ws38">BIT CRC GENERAT<span class="_ _1"></span>OR</span><span class="ff6 fs6"> </span></div></div><div class="t m0 x7a h2d y13d ff2 fs8 fc0 sc0 ls29 ws64">TEM<span class="_ _1"></span>PER<span class="_ _6"></span>A<span class="_ _8"></span>T<span class="_ _1"></span>U<span class="_ _1"></span>R<span class="_ _1"></span>E SENS<span class="_ _1"></span>OR</div><div class="c x7b y13e w2c h16"><div class="t m0 x7c h4 y78 ff1 fs2 fc0 sc0 ls0 ws0"> </div></div><div class="c x7d y13f w2d h37"><div class="t m0 x35 h2d y140 ff2 fs8 fc0 sc0 ls2c ws38">ALARM HIGH TRIGG<span class="_ _1"></span>ER (T</div></div><div class="t m0 x7e h32 y141 ff2 fs9 fc0 sc0 ls0 ws0">H</div><div class="c x7d y13f w2d h37"><div class="t m0 x7f h2d y140 ff2 fs8 fc0 sc0 ls2f ws65">) </div></div><div class="t m0 x1b h4 y142 ff2 fs8 fc0 sc0 ls29 ws66">REG<span class="_ _1"></span>IST<span class="_ _1"></span>ER (<span class="_ _1"></span>E<span class="_ _1"></span>EPR<span class="_ _1"></span>OM<span class="_ _1"></span>)<span class="ff1 fs2 ls0 ws0"> </span></div><div class="c x7d y13f w2d h37"><div class="t m0 x39 h35 y143 ff6 fs8 fc0 sc0 ls0 ws0"> </div></div><div class="c x7b y144 w2e h2a"><div class="t m0 x80 h2d y145 ff2 fs8 fc0 sc0 ls2c ws38">ALARM LOW TRIGG<span class="_ _1"></span>ER (T</div></div><div class="t m0 x81 h32 y146 ff2 fs9 fc0 sc0 ls0 ws0">L</div><div class="c x7b y144 w2e h2a"><div class="t m0 x82 h2d y145 ff2 fs8 fc0 sc0 ls2f ws65">) </div></div><div class="t m0 x27 h4 y147 ff2 fs8 fc0 sc0 ls29 ws5c">REG<span class="_ _1"></span>IST<span class="_ _1"></span>ER<span class="ls0 ws0"> </span>(<span class="_ _1"></span>EEPR<span class="_ _6"></span>OM)<span class="_ _1"></span><span class="ff1 fs2 ls0 ws0"> </span></div><div class="c x7b y144 w2e h2a"><div class="t m0 x39 h35 y148 ff6 fs8 fc0 sc0 ls0 ws0"><span class="fc2 sc0"> </span></div></div><div class="c x7b y149 w2f h38"><div class="t m0 x35 h2d y14a ff2 fs8 fc0 sc0 ls2c ws38">CONFIGURA<span class="_ _4"></span>TI<span class="_ _1"></span>ON REGISTER </div></div><div class="t m0 x48 h4 y14b ff2 fs8 fc0 sc0 ls29 ws5c">(EEPR<span class="_ _6"></span>OM)<span class="_ _1"></span><span class="ff1 fs2 ls0 ws0"> </span></div><div class="c x7b y149 w2f h38"><div class="t m0 x83 h35 y14c ff6 fs8 fc0 sc0 ls0 ws0"> </div></div><div class="c x84 y14d w30 h16"><div class="t m0 x11 h10 y74 ff5 fs0 fc0 sc0 lsf ws29">GND<span class="ls0 ws0"> </span></div></div><div class="c x85 y14e w31 h39"><div class="t m0 x11 h3a y6a ff2 fsb fc0 sc0 ls30 ws67">DS18B20<span class="ls0 ws0"> </span></div></div><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>

<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/639f1c2b8449b3069de5f5dd/bg4.jpg"><div class="t m0 x1e h2 ya6 ff1 fs0 fc0 sc0 ls0 ws0">DS18B<span class="_ _8"></span>20 </div><div class="t m0 x1 h4 ya7 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _18"> </span><span class="fs0">4 <span class="ls1 ws1">of <span class="_ _1"></span></span>22<span class="fs6"> </span></span></div><div class="t m0 x1 h1f y14f ff2 fs2 fc0 sc0 ls1d ws3d">Figu<span class="_ _4"></span>re<span class="_ _4"></span> <span class="ls0 ws0">2<span class="ls21 ws45">. <span class="ls18 ws56">Temper<span class="_ _4"></span>atur<span class="_ _4"></span>e <span class="_ _1"></span>Register Form<span class="_ _4"></span>at<span class="ff5 ls0 ws0"> </span></span></span></span></div><div class="t m0 x1 h2 y150 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="c x1 y151 w32 h3b"><div class="t m0 x23 h9 y152 ff2 fs0 fc0 sc0 ls0 ws0"> </div></div><div class="c x51 y151 w33 h3b"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 7<span class="ls0 ws0"> </span></div></div><div class="c x53 y151 w32 h3b"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 6<span class="ls0 ws0"> </span></div></div><div class="c x54 y151 w32 h3b"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 5<span class="ls0 ws0"> </span></div></div><div class="c x87 y151 w34 h3b"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 4<span class="ls0 ws0"> </span></div></div><div class="c x88 y151 w33 h3b"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 3<span class="ls0 ws0"> </span></div></div><div class="c x89 y151 w32 h3b"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 2<span class="ls0 ws0"> </span></div></div><div class="c x85 y151 w32 h3b"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 1<span class="ls0 ws0"> </span></div></div><div class="c x8a y151 w33 h3b"><div class="t m0 x86 h9 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 0<span class="ff2 ls0 ws0"> </span></div></div><div class="t m0 x39 h9 y153 ff2 fs0 fc0 sc0 ls1 ws27">L<span class="_ _1"></span>S<span class="_ _1"></span> BYT<span class="_ _6"></span>E <span class="_ _4"></span><span class="ls0 ws0"> </span></div><div class="t m0 x8b h10 y154 ff5 fs0 fc0 sc0 ls0 ws0">2</div><div class="t m0 x8c h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">3</div><div class="t m0 x8d h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x8e h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">2</div><div class="t m0 x8f h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x90 h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">1</div><div class="t m0 x91 h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x92 h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">0</div><div class="t m0 x5e h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1d"> </span>2</div><div class="t m0 x93 h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">-1</div><div class="t m0 x19 h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1e"> </span>2</div><div class="t m0 x94 h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">-2</div><div class="t m0 x3d h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1e"> </span>2</div><div class="t m0 x95 h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">-3</div><div class="t m0 x96 h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1e"> </span>2</div><div class="t m0 x2d h14 y155 ff5 fs7 fc0 sc0 ls0 ws0">-4</div><div class="t m0 x97 h10 y156 ff5 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x98 h10 y157 ff5 fs0 fc0 sc0 ls0 ws0"> </div><div class="c x51 y158 w33 h3c"><div class="t m0 x20 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 15<span class="_ _1"></span><span class="ls0 ws0"> </span></div></div><div class="c x53 y158 w32 h3c"><div class="t m0 x21 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 14<span class="_ _1"></span><span class="ls0 ws0"> </span></div></div><div class="c x54 y158 w32 h3c"><div class="t m0 x21 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 13<span class="_ _1"></span><span class="ls0 ws0"> </span></div></div><div class="c x87 y158 w34 h3c"><div class="t m0 x21 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 12<span class="_ _1"></span><span class="ls0 ws0"> </span></div></div><div class="c x88 y158 w33 h3c"><div class="t m0 x20 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 11<span class="_ _1"></span><span class="ls0 ws0"> </span></div></div><div class="c x89 y158 w32 h3c"><div class="t m0 x20 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 10<span class="_ _1"></span><span class="ls0 ws0"> </span></div></div><div class="c x85 y158 w32 h3c"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 9<span class="ls0 ws0"> </span></div></div><div class="c x8a y158 w33 h3c"><div class="t m0 x86 h10 y94 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 8<span class="ls0 ws0"> </span></div></div><div class="t m0 x39 h9 y159 ff2 fs0 fc0 sc0 ls0 ws29">MS BY<span class="_ _4"></span>TE<span class="ws0"> </span></div><div class="t m0 x99 h10 y15a ff5 fs0 fc0 sc0 ls0 ws0">S <span class="_ _1f"> </span>S <span class="_ _1f"> </span>S <span class="_ _20"> </span>S <span class="_ _1f"> </span>S <span class="_ _21"> </span>2</div><div class="t m0 x9a h14 y15b ff5 fs7 fc0 sc0 ls0 ws0">6</div><div class="t m0 x9b h10 yb3 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x9c h14 y15b ff5 fs7 fc0 sc0 ls0 ws0">5</div><div class="t m0 x9d h10 yb3 ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x9e h14 y15b ff5 fs7 fc0 sc0 ls0 ws0">4</div><div class="t m0 x9f h10 yb3 ff5 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 hd y15c ff5 fs6 fc0 sc0 ls32 ws68">S = S<span class="_ _1"></span>IG<span class="_ _1"></span>N<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h4 y15d ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h1f y15e ff2 fs2 fc0 sc0 ls1d ws3d">Table<span class="_ _8"></span> <span class="ls0 ws0">1<span class="ls21 ws45">. <span class="ls18">Temperatu<span class="_ _4"></span>re/Data R<span class="_ _4"></span>elation<span class="_ _4"></span>ship <span class="_ _8"></span><span class="ls0 ws0"> </span></span></span></span></div><div class="t m0 x44 h26 y15f ff6 fs2 fc0 sc0 ls17 ws34">TEM<span class="_ _1"></span>PERATU<span class="_ _1"></span>RE<span class="ls0 ws0"> <span class="_ _1"></span>(</span></div><div class="c x1 y160 w35 h3d"><div class="t m0 xa0 h28 y161 ff3 fs2 fc0 sc1 ls0 ws0">°</div></div><div class="t m0 xa1 h26 y15f ff6 fs2 fc0 sc0 ls1b ws39">C)<span class="ls0 ws0"> </span></div><div class="t m0 xa2 h26 y162 ff6 fs2 fc0 sc0 lsb ws51">DIGITA<span class="_ _6"></span>L OUT<span class="_ _1"></span><span class="ls1c ws3b">PU<span class="_ _1"></span>T<span class="_ _1"></span><span class="ls0 ws0"> </span></span></div><div class="t m0 xa3 h26 y163 ff6 fs2 fc0 sc0 ls1b ws39">(B<span class="_ _1"></span>INARY)<span class="ls0 ws0"> </span></div><div class="t m0 xa4 h26 y162 ff6 fs2 fc0 sc0 ls17 ws69">DIGITA<span class="_ _1"></span>L O<span class="_ _1"></span>UTPU<span class="_ _1"></span>T<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 xa5 h26 y163 ff6 fs2 fc0 sc0 ls17 ws34">(H<span class="_ _1"></span>EX)<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x98 h4 y164 ff1 fs2 fc0 sc0 ls0 ws0">+125 <span class="_ _22"> </span><span class="ws3e">0000 0111 1101 0000<span class="_ _8"></span><span class="ws0"> <span class="_ _23"> </span>07D0h </span></span></div><div class="t m0 x98 h4 y165 ff1 fs2 fc0 sc0 ls5 ws6">+85<span class="ls0 ws0">* <span class="_ _22"> </span><span class="ws3e">0000 0101 0101 0000<span class="_ _4"></span><span class="ws0"> <span class="_ _24"> </span>0550h </span></span></span></div><div class="t m0 xa6 h4 y142 ff1 fs2 fc0 sc0 ls0 ws0">+25.0625 <span class="_ _25"> </span><span class="ws3e">0000 0001 1001 0001<span class="_ _8"></span><span class="ws0"> <span class="_ _24"> </span>0191h </span></span></div><div class="t m0 xa7 h4 y166 ff1 fs2 fc0 sc0 ls0 ws0">+10.125 <span class="_ _26"> </span><span class="ws3e">0000 0000 1010 0010<span class="_ _8"></span><span class="ws0"> <span class="_ _23"> </span>00A<span class="_ _4"></span>2<span class="_ _1"></span>h </span></span></div><div class="t m0 xa8 h4 y167 ff1 fs2 fc0 sc0 ls5 ws6">+0.5<span class="_ _1"></span><span class="ls0 ws0"> <span class="_ _27"> </span><span class="ws3e">0000 0000 0000 1000<span class="_ _8"></span><span class="ws0"> <span class="_ _24"> </span>0008h </span></span></span></div><div class="t m0 x4a h4 y168 ff1 fs2 fc0 sc0 ls0 ws0">0 <span class="_ _28"> </span><span class="ws3e">0000 0000 0000 0000<span class="_ _8"></span><span class="ws0"> <span class="_ _24"> </span>0000h </span></span></div><div class="t m0 xa9 h4 y169 ff1 fs2 fc0 sc0 ls0 ws0">-0.5 <span class="_ _29"> </span><span class="ws3e">1111 1111 1111 1000<span class="_ _8"></span><span class="ws0"> <span class="_ _2a"> </span><span class="ls27 ws6a">FFF8<span class="_ _6"></span>h<span class="_ _1"></span></span> </span></span></div><div class="t m0 xaa h4 y16a ff1 fs2 fc0 sc0 ls0 ws0">-10.125 <span class="_ _2b"> </span><span class="ws3e">1111 1111 0101 1110<span class="_ _8"></span><span class="ws0"> <span class="_ _23"> </span><span class="ls27 ws6a">FF5<span class="_ _1"></span>E<span class="_ _1"></span>h<span class="_ _1"></span></span> </span></span></div><div class="t m0 xab h4 y16b ff1 fs2 fc0 sc0 ls0 ws0">-25.0625 <span class="_ _2c"> </span><span class="ws3e">1111 1110 0110 1111<span class="_ _8"></span><span class="ws0"> <span class="_ _23"> </span><span class="ls27 ws6a">FE<span class="_ _1"></span>6F<span class="_ _1"></span>h<span class="_ _1"></span></span> </span></span></div><div class="t m0 x51 h4 y16c ff1 fs2 fc0 sc0 ls0 ws0">-55 <span class="_ _2d"> </span><span class="ws3e">1111 1100 1001 0000<span class="_ _8"></span><span class="ws0"> <span class="_ _23"> </span><span class="ls27 ws6a">FC9<span class="_ _1"></span>0<span class="_ _1"></span>h<span class="_ _1"></span></span> </span></span></div><div class="t m0 x1 h24 y21 ff5 fs6 fc0 sc0 ls0 ws0">*<span class="ff7 ls19 ws36">The<span class="_ _1"></span> p<span class="_ _1"></span>ower<span class="_ _6"></span></span><span class="ff7">-<span class="ls19 ws36">on r<span class="_ _1"></span>es<span class="_ _1"></span>et<span class="_ _1"></span> va<span class="_ _1"></span>lu<span class="_ _1"></span>e <span class="_ _1"></span>of<span class="_ _1"></span> t<span class="_ _1"></span>h<span class="_ _1"></span>e t<span class="_ _1"></span>em<span class="_ _1"></span>pe<span class="_ _1"></span>rat<span class="_ _1"></span>ure<span class="_ _1"></span> r<span class="_ _1"></span>e<span class="_ _1"></span>g<span class="_ _1"></span>ist<span class="_ _1"></span>er <span class="_ _1"></span>is <span class="_ _1"></span>+8<span class="_ _1"></span>5°C<span class="_ _6"></span></span>.</span> </div><div class="t m0 x1 h2 y16d ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h3 y16e ff2 fs1 fc0 sc0 ls13 ws2d">OPER<span class="_ _1"></span>ATION<span class="_ _1"></span><span class="ls0 ws0">—<span class="_ _1"></span><span class="ls13">ALARM<span class="_ _1"></span> SIGN<span class="_ _1"></span>A<span class="_ _1"></span>LING<span class="_ _1"></span></span> </span></div><div class="t m0 x1 h4 y16f ff1 fs2 fc0 sc0 ls0 ws4c">Af<span class="_ _8"></span>t<span class="_ _1"></span>er t<span class="_ _1"></span>he DS18B20 performs a<span class="_ _4"></span> t<span class="_ _1"></span>em<span class="_ _8"></span>pe<span class="ls5 ws55">r<span class="_ _1"></span>at<span class="_ _1"></span>ure co<span class="_ _6"></span>nversi<span class="_ _4"></span>o<span class="_ _1"></span>n, t<span class="_ _1"></span>he temperat<span class="_ _1"></span>ure va<span class="_ _1"></span>lue is co<span class="_ _1"></span>mpared t<span class="_ _1"></span>o the user<span class="ls0 ws0">-</span></span></div><div class="t m0 x1 h4 y170 ff1 fs2 fc0 sc0 ls0 ws52">defined two<span class="_ _1"></span>’s<span class="_ _4"></span> co<span class="_ _1"></span>mplemen<span class="_ _4"></span>t<span class="_ _1"></span> a<span class="_ _1"></span>la<span class="_ _4"></span>r<span class="_ _1"></span>m tr<span class="_ _1"></span>i<span class="_ _8"></span>gger <span class="_ _1"></span>va<span class="_ _1"></span>lues sto<span class="_ _1"></span>red in the 1<span class="ws0">-<span class="_ _1"></span><span class="ls25 ws1a">b<span class="_ _1"></span>yt<span class="_ _5"></span>e<span class="_ _6"></span> T</span></span></div><div class="t m0 xac h2b y171 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 xad h4 y170 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _15"></span><span class="ls8 ws4c">a<span class="_ _6"></span>nd T</span></div><div class="t m0 x36 h2b y171 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 xae h4 y170 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _5"></span><span class="ls5 ws57">r<span class="_ _1"></span>eg<span class="_ _1"></span>ister<span class="_ _1"></span>s (s<span class="_ _1"></span>ee <span class="_ _1"></span></span>Figure <span class="_ _5"></span>3<span class="ls33 ws6b">).<span class="_ _1"></span></span> </div><div class="t m0 x1 h4 y172 ff1 fs2 fc0 sc0 ls8 ws4">T<span class="_ _1"></span>he<span class="_ _1"></span> s<span class="_ _1"></span>ig<span class="_ _6"></span>n b<span class="_ _1"></span>it<span class="_ _1"></span> (S<span class="_ _1"></span>)</div><div class="t m0 xaf h2b yda ff1 fs6 fc0 sc0 ls0 ws0"> </div><div class="t m0 xb0 h4 y172 ff1 fs2 fc0 sc0 ls6 ws6c">ind<span class="_ _6"></span>ic<span class="_ _1"></span>at<span class="_ _6"></span>e<span class="_ _1"></span>s <span class="_ _1"></span>if t<span class="_ _5"></span>he<span class="_ _1"></span> <span class="_ _1"></span>va<span class="_ _1"></span>lu<span class="_ _1"></span>e<span class="_ _1"></span> <span class="_ _1"></span>is<span class="_ _1"></span> p<span class="_ _1"></span>o<span class="_ _6"></span>s<span class="_ _1"></span>it<span class="_ _6"></span>ive<span class="_ _1"></span> o<span class="_ _6"></span>r<span class="_ _1"></span><span class="ls0 ws0"> <span class="_ _1"></span><span class="ls5 ws6">neg<span class="_ _1"></span>at<span class="_ _1"></span>ive: <span class="_ _6"></span><span class="ls9 ws3e">f<span class="_ _8"></span>or p<span class="_ _4"></span>osi<span class="_ _19"></span>t<span class="_ _1"></span>i<span class="_ _8"></span>ve<span class="_ _8"></span> <span class="_ _1"></span>n<span class="_ _8"></span>um<span class="_ _4"></span>be<span class="_ _8"></span>rs S<span class="_ _4"></span> <span class="_ _1"></span>=<span class="_ _4"></span> 0 an<span class="_ _8"></span>d f<span class="_ _8"></span>or n<span class="_ _4"></span>e<span class="_ _4"></span>gati<span class="_ _19"></span>ve </span></span></span></div><div class="t m0 x1 h4 y173 ff1 fs2 fc0 sc0 ls5 ws9">numbers S = 1<span class="ls22 ws3c">. <span class="_ _17"></span><span class="ls8 wsd">T<span class="_ _6"></span>he <span class="_ _17"></span><span class="ls0 ws0">T</span></span></span></div><div class="t m0 x73 h2b y174 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 xb1 h4 y173 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _17"></span><span class="ls8 ws7">and<span class="_ _1"></span> T</span></div><div class="t m0 xb2 h2b y174 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 xb3 h4 y173 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _17"></span><span class="ls5 ws9">reg<span class="_ _1"></span>i<span class="_ _4"></span>st<span class="_ _1"></span>ers ar<span class="_ _1"></span>e nonvo<span class="_ _1"></span>lat<span class="_ _1"></span>ile (EEP<span class="_ _1"></span>ROM) so<span class="_ _1"></span> they will ret<span class="_ _1"></span>ain data w<span class="_ _1"></span>hen the </span></div><div class="t m0 x1 h4 y175 ff1 fs2 fc0 sc0 ls5 ws48">device is po<span class="_ _1"></span>wered d<span class="_ _1"></span>o<span class="_ _1"></span>wn. T</div><div class="t m0 xb4 h2b y176 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 xb5 h4 y175 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _1"></span><span class="ls8 ws1b">a<span class="_ _1"></span>nd<span class="_ _1"></span> T</span></div><div class="t m0 xb6 h2b y176 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 xb7 h4 y175 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _1"></span><span class="ls5 ws48">can b<span class="_ _4"></span>e acc<span class="_ _1"></span>ess<span class="_ _1"></span>ed t<span class="_ _6"></span>h<span class="_ _4"></span>rou<span class="_ _1"></span>gh by<span class="_ _8"></span>t<span class="_ _1"></span>e<span class="_ _1"></span>s 2 and 3 o<span class="_ _1"></span>f<span class="_ _4"></span> t<span class="_ _1"></span>he scrat<span class="_ _1"></span>chpad as e<span class="_ _1"></span>xpla<span class="_ _1"></span>in<span class="_ _4"></span>e<span class="_ _1"></span>d<span class="_ _1"></span> </span></div><div class="t m0 x1 h4 y177 ff1 fs2 fc0 sc0 ls8 wse">in t<span class="_ _6"></span>he <span class="ff8 ls5 ws6">M<span class="_ _1"></span>emor<span class="_ _1"></span>y</span><span class="ls0 ws0"> <span class="ls5 ws6">sect<span class="_ _6"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n<span class="ls0 ws0">. </span></span></span></div><div class="t m0 x1 h1f y178 ff2 fs2 fc0 sc0 ls1d ws3d">Figu<span class="_ _4"></span>re<span class="_ _4"></span> <span class="ls0 ws0">3<span class="ls21 ws45">. </span>T</span></div><div class="t m0 xb8 h3e y179 ff2 fsc fc0 sc0 ls0 ws0">H</div><div class="t m0 xb9 h1f y178 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="ls1c ws6b">and<span class="_ _1"></span> T</span></div><div class="t m0 xba h3e y179 ff2 fsc fc0 sc0 ls0 ws0">L</div><div class="t m0 xbb h1f y178 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="ls18 ws45">Regi<span class="_ _4"></span>ster For<span class="_ _4"></span>mat<span class="ls0 ws0"> </span></span></div><div class="t m0 x1 h2 y17a ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="c xbc y17b w32 h3f"><div class="t m0 x86 h10 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 7<span class="ls0 ws0"> </span></div></div><div class="c xbd y17b w33 h3f"><div class="t m0 x86 h10 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 6<span class="ls0 ws0"> </span></div></div><div class="c xbe y17b w32 h3f"><div class="t m0 x86 h10 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 5<span class="ls0 ws0"> </span></div></div><div class="c xbf y17b w32 h3f"><div class="t m0 x86 h10 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 4<span class="ls0 ws0"> </span></div></div><div class="c xc0 y17b w34 h3f"><div class="t m0 x86 h10 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 3<span class="ls0 ws0"> </span></div></div><div class="c x18 y17b w33 h3f"><div class="t m0 x86 h10 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 2<span class="ls0 ws0"> </span></div></div><div class="c x67 y17b w32 h3f"><div class="t m0 x86 h10 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 1<span class="ls0 ws0"> </span></div></div><div class="c xc1 y17b w32 h3f"><div class="t m0 x86 h9 y76 ff5 fs0 fc0 sc0 ls31 ws1">BI<span class="_ _1"></span>T 0<span class="ff2 ls0 ws0"> </span></div></div><div class="t m0 x7f h10 y17c ff5 fs0 fc0 sc0 ls0 ws0">S <span class="_ _21"> </span>2</div><div class="t m0 xa1 h14 y17d ff5 fs7 fc0 sc0 ls0 ws0">6</div><div class="t m0 x53 h10 y17c ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 xc2 h14 y17d ff5 fs7 fc0 sc0 ls0 ws0">5</div><div class="t m0 xb7 h10 y17c ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x6c h14 y17d ff5 fs7 fc0 sc0 ls0 ws0">4</div><div class="t m0 xc3 h10 y17c ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x14 h14 y17d ff5 fs7 fc0 sc0 ls0 ws0">3</div><div class="t m0 x88 h10 y17c ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 xc4 h14 y17d ff5 fs7 fc0 sc0 ls0 ws0">2</div><div class="t m0 x89 h10 y17c ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 xc5 h14 y17d ff5 fs7 fc0 sc0 ls0 ws0">1</div><div class="t m0 x85 h10 y17c ff5 fs0 fc0 sc0 ls0 ws0"> <span class="_ _1c"> </span>2</div><div class="t m0 x32 h14 y17d ff5 fs7 fc0 sc0 ls0 ws0">0</div><div class="t m0 x8a h10 y17c ff5 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y17e ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y5d ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y17f ff1 fs2 fc0 sc0 ls0 wse">Only bi<span class="_ _8"></span>t<span class="_ _6"></span>s 11 thro<span class="_ _1"></span>ugh 4 o<span class="_ _1"></span>f<span class="_ _4"></span> the t<span class="_ _1"></span>e<span class="_ _1"></span>m<span class="_ _4"></span>perat<span class="_ _1"></span>ure register are used in th<span class="ls5 ws48">e T</span></div><div class="t m0 xc6 h2b y180 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 xc7 h4 y17f ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _1"></span><span class="ls8 ws1b">a<span class="_ _6"></span>nd T</span></div><div class="t m0 xc8 h2b y180 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 xc9 h4 y17f ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _6"></span><span class="ls5 ws48">co<span class="_ _6"></span>m<span class="_ _8"></span>par<span class="_ _6"></span>ison since T</span></div><div class="t m0 xca h2b y180 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 xcb h4 y17f ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _1"></span><span class="wse">a<span class="_ _1"></span>nd T</span></div><div class="t m0 xcc h2b y180 ff1 fs6 fc0 sc0 ls34 ws6d">L </div><div class="t m0 x1 h4 y181 ff1 fs2 fc0 sc0 ls5 ws48">are 8<span class="ls0 ws0">-<span class="_ _1"></span></span>bi<span class="_ _4"></span>t<span class="_ _1"></span> reg<span class="_ _1"></span>is<span class="_ _4"></span>t<span class="_ _1"></span>ers.<span class="_ _1"></span> If the mea<span class="_ _1"></span>sured t<span class="_ _6"></span>emperat<span class="_ _1"></span>ure is lo<span class="_ _1"></span>wer<span class="_ _1"></span> than<span class="_ _4"></span> o<span class="_ _1"></span>r equ<span class="_ _1"></span>a<span class="_ _1"></span>l<span class="_ _8"></span> t<span class="_ _1"></span>o<span class="_ _1"></span> T</div><div class="t m0 x66 h2b y182 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 xc8 h4 y181 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="wse">o<span class="_ _1"></span>r hi<span class="_ _4"></span>g<span class="_ _1"></span>her than<span class="_ _8"></span> o<span class="_ _1"></span>r<span class="_ _1"></span> equal<span class="_ _4"></span> t<span class="_ _1"></span>o T</span></div><div class="t m0 xcd h2b y182 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 xce h4 y181 ff1 fs2 fc0 sc0 ls22 ws3c">, </div><div class="t m0 x1 h4 y183 ff1 fs2 fc0 sc0 ls0 ws52">an<span class="_ _4"></span> <span class="_ _1"></span>alar<span class="_ _1"></span>m<span class="_ _8"></span> <span class="_ _1"></span>co<span class="_ _1"></span>ndi<span class="_ _4"></span>t<span class="_ _1"></span>ion exists and an a<span class="_ _1"></span>larm<span class="_ _4"></span> <span class="_ _1"></span>flag is set <span class="_ _1"></span>insi<span class="_ _8"></span>d<span class="_ _1"></span>e t<span class="_ _1"></span>he DS18B20. This flag is updat<span class="_ _1"></span>ed after ever<span class="_ _6"></span>y </div><div class="t m0 x1 h4 y184 ff1 fs2 fc0 sc0 ls4 ws5">t<span class="_ _6"></span>e<span class="_ _6"></span>mp<span class="_ _1"></span><span class="ls5 ws17">er<span class="_ _1"></span>at<span class="_ _1"></span>ur<span class="_ _1"></span>e measureme<span class="_ _1"></span>nt; t<span class="_ _1"></span>here<span class="_ _1"></span>f<span class="_ _4"></span>o<span class="_ _1"></span>re,<span class="_ _1"></span> <span class="_ _1"></span>if<span class="_ _8"></span> t<span class="_ _1"></span>he a<span class="_ _1"></span>larm c<span class="_ _1"></span>o<span class="_ _1"></span>ndi<span class="_ _4"></span>t<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _6"></span>n goes awa<span class="_ _1"></span>y<span class="_ _8"></span>,<span class="_ _1"></span> t<span class="_ _1"></span>he <span class="_ _1"></span>fl<span class="_ _4"></span>a<span class="_ _1"></span>g w<span class="_ _1"></span>ill be tur<span class="_ _1"></span>ned o<span class="_ _1"></span>ff af<span class="_ _4"></span>t<span class="_ _1"></span>e<span class="_ _1"></span>r t<span class="_ _1"></span>he </span></div><div class="t m0 x1 h4 y185 ff1 fs2 fc0 sc0 ls8 ws3e">ne<span class="_ _1"></span>xt<span class="_ _6"></span> t<span class="_ _6"></span>e<span class="_ _1"></span>mpe<span class="_ _1"></span>r<span class="_ _6"></span>at<span class="_ _6"></span>u<span class="_ _1"></span>r<span class="_ _1"></span>e<span class="_ _1"></span> <span class="_ _1"></span>co<span class="_ _1"></span>nve<span class="_ _1"></span>r<span class="_ _1"></span>s<span class="_ _6"></span>io<span class="_ _6"></span>n.<span class="_ _1"></span> <span class="_ _1"></span><span class="ls0 ws0"> </span></div><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>

<div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/639f1c2b8449b3069de5f5dd/bg5.jpg"><div class="t m0 x1e h2 ya6 ff1 fs0 fc0 sc0 ls0 ws0">DS18B<span class="_ _8"></span>20 </div><div class="t m0 x1 h4 ya7 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _18"> </span><span class="fs0">5 <span class="ls1 ws1">of <span class="_ _1"></span></span>22<span class="fs6"> </span></span></div><div class="t m0 x1 h4 yec ff1 fs2 fc0 sc0 ls5 ws17">The mast<span class="_ _1"></span>er dev<span class="_ _1"></span>i<span class="_ _8"></span>c<span class="_ _1"></span>e ca<span class="_ _1"></span>n check t<span class="_ _1"></span>he alarm flag st<span class="_ _1"></span>at<span class="_ _1"></span>us of all<span class="_ _4"></span> DS18B20<span class="_ _1"></span>s on t<span class="_ _1"></span>he b<span class="_ _4"></span>u<span class="_ _1"></span>s by issu<span class="_ _1"></span>ing an Alar<span class="_ _1"></span>m<span class="_ _4"></span> S<span class="_ _1"></span>earc<span class="_ _1"></span>h </div><div class="t m0 x1 h4 yed ff1 fs2 fc0 sc0 ls8 ws52">[<span class="_ _1"></span>E<span class="_ _1"></span>C<span class="_ _1"></span>h]<span class="_ _1"></span> c<span class="_ _1"></span>o<span class="_ _6"></span>m<span class="_ _1"></span>ma<span class="_ _1"></span>nd<span class="_ _1"></span>.<span class="_ _6"></span> A<span class="_ _1"></span>n<span class="_ _1"></span>y<span class="ls0 ws0"> <span class="_ _5"></span><span class="ls5 ws53">DS1<span class="_ _1"></span>8B20<span class="_ _1"></span>s w<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _6"></span>h a set<span class="_ _1"></span> a<span class="_ _1"></span>larm flag w<span class="_ _1"></span>ill re<span class="_ _1"></span>spo<span class="_ _1"></span>nd t<span class="_ _1"></span>o<span class="_ _1"></span> the co<span class="_ _6"></span>mm<span class="_ _8"></span>a<span class="_ _1"></span>nd,<span class="_ _1"></span> so t<span class="_ _6"></span>he master ca<span class="_ _6"></span>n </span></span></div><div class="t m0 x1 h4 y186 ff1 fs2 fc0 sc0 ls8 ws7">de<span class="_ _1"></span>t<span class="_ _6"></span>e<span class="_ _1"></span>r<span class="_ _1"></span>min<span class="_ _1"></span>e<span class="_ _1"></span> e<span class="_ _6"></span>xac<span class="_ _1"></span>t<span class="_ _5"></span>ly w<span class="_ _1"></span>h<span class="_ _1"></span>ic<span class="_ _6"></span>h DS<span class="_ _6"></span>18<span class="_ _1"></span>B<span class="_ _1"></span>2<span class="_ _1"></span>0<span class="_ _6"></span>s <span class="_ _1"></span>ha<span class="_ _6"></span>ve e<span class="_ _6"></span>xp<span class="_ _1"></span>er<span class="_ _6"></span>ie<span class="_ _6"></span>nc<span class="_ _1"></span>ed<span class="_ _1"></span> a<span class="_ _6"></span>n <span class="_ _1"></span>a<span class="_ _1"></span>la<span class="_ _1"></span>r<span class="_ _6"></span>m co<span class="_ _6"></span>nd<span class="_ _6"></span>i<span class="_ _4"></span>t<span class="_ _6"></span>io<span class="_ _6"></span>n.<span class="_ _6"></span> I<span class="_ _1"></span>f a<span class="_ _6"></span>n a<span class="_ _1"></span>la<span class="_ _1"></span>r<span class="_ _6"></span>m c<span class="_ _1"></span>o<span class="_ _6"></span>nd<span class="_ _1"></span>it<span class="_ _6"></span>io<span class="_ _1"></span>n e<span class="_ _6"></span>xi<span class="_ _1"></span>st<span class="_ _5"></span>s<span class="_ _1"></span> </div><div class="t m0 x1 h4 y187 ff1 fs2 fc0 sc0 ls8 ws4c">and<span class="_ _1"></span> t<span class="_ _6"></span>he<span class="_ _1"></span> T</div><div class="t m0 x7c h2b y188 ff1 fs6 fc0 sc0 ls0 ws0">H</div><div class="t m0 x98 h4 y187 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _5"></span><span class="ls33 ws6e">o<span class="_ _1"></span>r T</span></div><div class="t m0 xb0 h2b y188 ff1 fs6 fc0 sc0 ls0 ws0">L</div><div class="t m0 x99 h4 y187 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _5"></span><span class="ls8 ws4c">s<span class="_ _1"></span>e<span class="_ _1"></span>t<span class="_ _1"></span>t<span class="_ _6"></span>ing<span class="_ _1"></span>s<span class="_ _1"></span> <span class="_ _1"></span>ha<span class="_ _1"></span>ve<span class="_ _1"></span> <span class="_ _1"></span>c<span class="_ _6"></span>ha<span class="_ _1"></span>ng<span class="_ _1"></span>e<span class="_ _1"></span>d<span class="_ _1"></span>,<span class="_ _1"></span> a<span class="_ _6"></span>no<span class="_ _6"></span>t<span class="_ _1"></span>he<span class="_ _1"></span>r<span class="_ _6"></span> t<span class="_ _1"></span>e<span class="_ _1"></span>mpe<span class="_ _1"></span>r<span class="_ _1"></span>a<span class="_ _1"></span>t<span class="_ _6"></span>u<span class="_ _1"></span>r<span class="_ _1"></span>e<span class="_ _1"></span> co<span class="_ _6"></span>nve<span class="_ _1"></span>r<span class="_ _1"></span>s<span class="_ _6"></span>i<span class="_ _4"></span>o<span class="_ _6"></span>n <span class="_ _1"></span>s<span class="_ _6"></span>ho<span class="_ _1"></span>u<span class="_ _6"></span>ld <span class="_ _1"></span>be<span class="_ _1"></span> d<span class="_ _1"></span>o<span class="_ _6"></span>ne t<span class="_ _6"></span>o<span class="_ _6"></span> va<span class="_ _1"></span>lid<span class="_ _1"></span>a<span class="_ _1"></span>t<span class="_ _6"></span>e<span class="_ _1"></span> t<span class="_ _6"></span>he<span class="_ _1"></span> </span></div><div class="t m0 x1 h4 y189 ff1 fs2 fc0 sc0 ls4 ws6c">a<span class="_ _6"></span>la<span class="_ _1"></span>r<span class="_ _5"></span>m c<span class="_ _6"></span>o<span class="_ _6"></span>n<span class="_ _1"></span>d<span class="_ _6"></span>it<span class="_ _5"></span>io<span class="_ _5"></span>n<span class="_ _1"></span>.<span class="_ _5"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h2 y18a ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h3 y18b ff2 fs1 fc0 sc0 ls1a ws54">POWERING THE DS<span class="_ _1"></span>18B20<span class="_ _1"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h4 y18c ff1 fs2 fc0 sc0 ls0 ws3e">The DS18B20 c<span class="_ _4"></span>an be po<span class="_ _1"></span>wered by an external supply on t<span class="_ _1"></span>he<span class="_ _4"></span> V</div><div class="t m0 x17 h2b y18d ff1 fs6 fc0 sc0 ls23 ws31">DD</div><div class="t m0 xcf h4 y18c ff1 fs2 fc0 sc0 ls0 ws0"> <span class="ls5 ws17">p<span class="_ _1"></span>in, o<span class="_ _1"></span>r<span class="_ _1"></span> i<span class="_ _4"></span>t<span class="_ _1"></span> ca<span class="_ _1"></span>n oper<span class="_ _1"></span>at<span class="_ _1"></span>e in “parasite<span class="_ _1"></span> power<span class="_ _1"></span>”<span class="_ _1"></span> </span></div><div class="t m0 x1 h4 y18e ff1 fs2 fc0 sc0 ls9 ws1a">m<span class="_ _19"></span>ode<span class="_ _4"></span>, wh<span class="_ _8"></span>ic<span class="_ _4"></span>h<span class="_ _8"></span> all<span class="_ _19"></span>ows<span class="_ _8"></span> th<span class="_ _8"></span>e D<span class="_ _4"></span>S1<span class="_ _8"></span>8B2<span class="_ _8"></span>0 to f<span class="_ _19"></span>un<span class="_ _8"></span>cti<span class="_ _8"></span>on<span class="_ _8"></span> wi<span class="_ _8"></span>t<span class="_ _1"></span>h<span class="_ _8"></span>out a<span class="_ _4"></span> l<span class="_ _19"></span>ocal<span class="_ _19"></span> ex<span class="_ _8"></span>ter<span class="_ _4"></span>n<span class="_ _8"></span>al<span class="_ _4"></span> s<span class="_ _4"></span>u<span class="_ _4"></span>ppl<span class="_ _8"></span>y<span class="_ _4"></span>.<span class="ls0 ws0"> <span class="_ _17"></span><span class="ls5 wsc">P<span class="_ _1"></span>aras<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>e po<span class="_ _1"></span>w<span class="ls8 ws6f">e<span class="_ _1"></span>r<span class="_ _1"></span> is ve<span class="_ _6"></span>r<span class="_ _6"></span>y </span></span></span></div><div class="t m0 x1 h4 y18f ff1 fs2 fc0 sc0 ls5 ws49">useful for<span class="_ _1"></span> app<span class="_ _1"></span>licat<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _6"></span>n<span class="_ _4"></span>s t<span class="_ _1"></span>hat r<span class="_ _1"></span>equ<span class="_ _1"></span>i<span class="_ _4"></span>re r<span class="_ _1"></span>e<span class="_ _1"></span>m<span class="_ _4"></span>o<span class="_ _1"></span>t<span class="_ _1"></span>e temperat<span class="_ _1"></span>u<span class="_ _1"></span>re sensing o<span class="_ _1"></span>r that<span class="_ _1"></span> are ver<span class="_ _1"></span>y<span class="_ _4"></span> <span class="_ _1"></span>space co<span class="_ _1"></span>nst<span class="_ _1"></span>r<span class="_ _1"></span>ai<span class="_ _8"></span>n<span class="_ _1"></span>ed.<span class="_ _6"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h4 y190 ff1 fs2 fc0 sc0 ls0 ws0">Figure <span class="_ _5"></span>1 <span class="_ _15"></span><span class="ws52">s<span class="_ _1"></span>hows the DS18B20’s para<span class="_ _1"></span>si<span class="_ _4"></span>t<span class="_ _1"></span>e<span class="ws0">-<span class="ls5 ws57">po<span class="_ _1"></span>wer<span class="_ _1"></span> co<span class="_ _1"></span>ntro<span class="_ _1"></span>l<span class="_ _4"></span> c<span class="_ _1"></span>ircu<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>r<span class="_ _1"></span>y<span class="_ _4"></span>, w<span class="_ _1"></span>hic<span class="_ _1"></span>h <span class="_ _1"></span>“stea<span class="_ _1"></span>ls” po<span class="_ _1"></span>wer<span class="_ _1"></span> <span class="_ _1"></span>f<span class="_ _4"></span>ro<span class="_ _1"></span>m t<span class="_ _1"></span>he 1<span class="ls0 ws0">-<span class="_ _1"></span><span class="ls4 ws5">W<span class="_ _1"></span>ir<span class="_ _5"></span>e<span class="_ _6"></span> </span></span></span></span></span></div><div class="t m0 x1 h4 y191 ff1 fs2 fc0 sc0 ls0 ws4">bus<span class="_ _4"></span> via th<span class="ls8 ws52">e D<span class="_ _1"></span>Q<span class="_ _1"></span> p<span class="_ _6"></span>in w<span class="_ _1"></span>he<span class="_ _6"></span>n t<span class="_ _6"></span>he <span class="_ _1"></span>bu<span class="_ _1"></span>s<span class="_ _1"></span> <span class="_ _1"></span>is <span class="_ _1"></span>h<span class="_ _1"></span>ig<span class="_ _6"></span>h.<span class="_ _1"></span> T<span class="_ _6"></span>he s<span class="_ _1"></span>t<span class="_ _6"></span>ol<span class="_ _1"></span>e<span class="_ _1"></span>n c<span class="_ _6"></span>har<span class="_ _6"></span>ge<span class="_ _1"></span> p<span class="_ _1"></span>o<span class="_ _6"></span>w<span class="_ _1"></span>er<span class="_ _6"></span>s t<span class="_ _6"></span>he D<span class="_ _1"></span>S<span class="_ _1"></span>1<span class="_ _1"></span>8<span class="_ _1"></span>B<span class="_ _1"></span>2<span class="_ _1"></span>0<span class="_ _1"></span> w<span class="_ _1"></span>h<span class="_ _1"></span>ile<span class="_ _1"></span> t<span class="_ _6"></span>he <span class="_ _1"></span>bu<span class="_ _1"></span>s <span class="_ _1"></span>i<span class="_ _1"></span>s <span class="_ _1"></span>h<span class="_ _1"></span>ig<span class="_ _6"></span>h,<span class="_ _6"></span> </span></div><div class="t m0 x1 h4 y192 ff1 fs2 fc0 sc0 ls5 ws16">and so<span class="_ _6"></span>m<span class="_ _8"></span>e o<span class="_ _6"></span>f the charge <span class="_ _1"></span>is st<span class="_ _1"></span>o<span class="_ _1"></span>r<span class="_ _1"></span>ed on t<span class="_ _1"></span>he parasite p<span class="_ _1"></span>o<span class="_ _1"></span>wer<span class="_ _1"></span> capac<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>or<span class="_ _1"></span> (C</div><div class="t m0 xd0 h2b y193 ff1 fs6 fc0 sc0 ls19 ws43">PP</div><div class="t m0 xd1 h4 y192 ff1 fs2 fc0 sc0 ls0 ws1b">) to<span class="_ _1"></span> provi<span class="_ _4"></span>de power<span class="_ _1"></span> when the bus <span class="_ _1"></span>is </div><div class="t m0 x1 h4 y194 ff1 fs2 fc0 sc0 ls4 ws5">lo<span class="_ _6"></span>w<span class="_ _6"></span>.<span class="_ _6"></span><span class="ls0 ws0"> <span class="ls5 ws17">When t<span class="_ _1"></span>he DS18B20 <span class="_ _1"></span>i<span class="_ _4"></span>s used <span class="_ _1"></span>in parasite po<span class="_ _1"></span>wer<span class="_ _1"></span> m<span class="_ _8"></span>o<span class="_ _1"></span>de,<span class="_ _1"></span> t<span class="_ _1"></span>he V</span></span></div><div class="t m0 x5a h2b y162 ff1 fs6 fc0 sc0 ls23 ws31">DD</div><div class="t m0 xd2 h4 y194 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="ws3e">pin<span class="_ _4"></span> must be connec<span class="_ _4"></span>t<span class="_ _1"></span>ed to gr<span class="_ _4"></span>ound.<span class="ws0"> </span></span></div><div class="t m0 x1 h26 y195 ff6 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y196 ff1 fs2 fc0 sc0 ls5 ws16">In paras<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>e p<span class="_ _1"></span>o<span class="_ _1"></span>wer <span class="_ _1"></span>mode,<span class="_ _1"></span> the 1<span class="ls0 ws0">-<span class="_ _1"></span><span class="ls8 ws4">Wir<span class="_ _1"></span>e<span class="_ _6"></span> bu<span class="_ _1"></span>s<span class="_ _1"></span> a<span class="_ _1"></span>nd<span class="_ _6"></span> C</span></span></div><div class="t m0 x6c h2b y197 ff1 fs6 fc0 sc0 ls19 ws43">PP</div><div class="t m0 xd3 h4 y196 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _6"></span><span class="ws1b">can pro<span class="_ _1"></span>vide<span class="_ _4"></span> <span class="_ _1"></span>sufficient current to<span class="_ _1"></span> the DS18B20 f<span class="_ _4"></span>o<span class="_ _1"></span>r <span class="_ _1"></span>m<span class="_ _8"></span>o<span class="_ _1"></span>st<span class="_ _6"></span> </span></div><div class="t m0 x1 h4 y198 ff1 fs2 fc0 sc0 ls5 ws50">o<span class="_ _1"></span>perat<span class="_ _1"></span>i<span class="_ _8"></span>o<span class="_ _6"></span>ns<span class="_ _4"></span> <span class="_ _1"></span>as lo<span class="_ _1"></span>ng as t<span class="_ _1"></span>he spec<span class="_ _1"></span>if<span class="_ _1"></span>ied t<span class="_ _6"></span>im<span class="_ _4"></span>ing a<span class="_ _1"></span>nd vo<span class="_ _6"></span>l<span class="_ _8"></span>t<span class="_ _1"></span>ag<span class="_ _1"></span>e requ<span class="_ _6"></span>i<span class="_ _8"></span>r<span class="_ _1"></span>e<span class="_ _1"></span>ments ar<span class="_ _1"></span>e <span class="_ _1"></span>met (<span class="_ _1"></span><span class="lsb ws25">see<span class="ls0 ws0"> <span class="_ _1a"> </span><span class="ls8 wsd">t<span class="_ _6"></span>he<span class="_ _1"></span></span><span class="ff8"> <span class="_ _1a"> </span></span></span></span><span class="ff8">DC Elect<span class="_ _6"></span>rical<span class="_ _1"></span> </span></div><div class="t m0 x1 h4 y199 ff8 fs2 fc0 sc0 ls0 ws0">Character<span class="ls21 ws45">is<span class="_ _4"></span>tics<span class="ff1 ls0 ws0"> <span class="_ _2e"> </span><span class="ls8 wsd">a<span class="_ _1"></span>nd<span class="_ _1"></span> <span class="_ _2e"> </span></span></span><span class="ws70">AC<span class="_ _1"></span> Electrica<span class="_ _4"></span>l <span class="_ _1"></span>Chara<span class="_ _4"></span>cteristics<span class="ff1 ls0 ws71">). Ho<span class="_ _1"></span>weve<span class="_ _4"></span>r,<span class="_ _1"></span> when the DS18B20 <span class="_ _1"></span>is per<span class="_ _1"></span>f<span class="_ _8"></span>o<span class="_ _1"></span>r<span class="_ _1"></span>ming<span class="_ _1"></span> </span></span></span></div><div class="t m0 x1 h4 y19a ff1 fs2 fc0 sc0 ls5 ws48">t<span class="_ _1"></span>em<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>re convers<span class="_ _1"></span>i<span class="_ _4"></span>o<span class="_ _6"></span>ns<span class="_ _4"></span> o<span class="_ _1"></span>r co<span class="_ _1"></span>pyi<span class="_ _4"></span>ng dat<span class="_ _1"></span>a fro<span class="_ _6"></span>m<span class="_ _8"></span> t<span class="_ _1"></span>he scrat<span class="_ _1"></span>chpad <span class="_ _1"></span>m<span class="_ _4"></span>emor<span class="_ _1"></span>y to<span class="_ _1"></span> EEP<span class="_ _1"></span>ROM, the operat<span class="_ _1"></span>in<span class="_ _4"></span>g cu<span class="_ _1"></span>rr<span class="_ _1"></span>ent </div><div class="t m0 x1 h4 y19b ff1 fs2 fc0 sc0 ls5 ws57">can <span class="_ _1"></span>be as <span class="_ _1"></span>high as 1.<span class="_ _1"></span>5<span class="_ _1"></span>mA. T<span class="_ _1"></span>his cur<span class="_ _1"></span>re<span class="_ _1"></span>nt<span class="_ _1"></span> can<span class="ls0 ws0"> <span class="_ _15"></span></span>cause <span class="_ _1"></span>an<span class="_ _1"></span> u<span class="_ _1"></span>nacceptab<span class="_ _1"></span>le <span class="_ _1"></span>vo<span class="_ _1"></span>l<span class="_ _4"></span>t<span class="_ _1"></span>age dr<span class="_ _1"></span>o<span class="_ _1"></span>p acro<span class="_ _1"></span>ss t<span class="_ _1"></span>he weak 1<span class="ls0 ws0">-<span class="_ _1"></span><span class="ls6 ws8">Wir<span class="_ _6"></span>e<span class="_ _6"></span> </span></span></div><div class="t m0 x1 h4 y19c ff1 fs2 fc0 sc0 ls0 ws3e">pullup resis<span class="_ _4"></span>tor<span class="_ _1"></span> and i<span class="_ _8"></span>s <span class="_ _1"></span>m<span class="_ _8"></span>o<span class="_ _1"></span>r<span class="_ _1"></span>e current than<span class="_ _8"></span> ca<span class="_ _1"></span>n be s<span class="_ _4"></span>upp<span class="_ _1"></span>lie<span class="_ _4"></span>d by C</div><div class="t m0 x59 h2b y19d ff1 fs6 fc0 sc0 ls19 ws43">PP</div><div class="t m0 xd4 h4 y19c ff1 fs2 fc0 sc0 ls0 ws3e">. To assure t<span class="_ _1"></span>ha<span class="_ _4"></span>t the DS18B<span class="_ _4"></span>20 has<span class="_ _4"></span> suff<span class="_ _1"></span>ic<span class="_ _1"></span>i<span class="_ _8"></span>e<span class="_ _1"></span>nt </div><div class="t m0 x1 h4 y19e ff1 fs2 fc0 sc0 ls0 ws23">supply<span class="_ _4"></span> cur<span class="_ _1"></span>rent, i<span class="_ _4"></span>t<span class="_ _1"></span> <span class="_ _1"></span>i<span class="_ _8"></span>s <span class="_ _1"></span>necessar<span class="_ _1"></span>y to<span class="_ _1"></span> pr<span class="_ _8"></span>o<span class="_ _1"></span>vide<span class="_ _4"></span> <span class="_ _1"></span>a stron<span class="_ _4"></span>g pu<span class="_ _1"></span>llup on the 1<span class="ws0">-<span class="ls8 ws72">W<span class="_ _1"></span>ire<span class="_ _1"></span> <span class="_ _1"></span>bu<span class="_ _6"></span>s w<span class="_ _6"></span>he<span class="_ _1"></span>ne<span class="_ _6"></span>ve<span class="_ _1"></span>r<span class="_ _1"></span> t<span class="_ _6"></span>e<span class="_ _1"></span>mp<span class="ls5 ws6">er<span class="_ _1"></span>a<span class="_ _1"></span>t<span class="_ _1"></span>ur<span class="_ _1"></span>e </span></span></span></div><div class="t m0 x1 h4 y19f ff1 fs2 fc0 sc0 ls5 ws10">co<span class="_ _1"></span>nv<span class="_ _4"></span>ers<span class="_ _1"></span>i<span class="_ _8"></span>o<span class="_ _6"></span>ns ar<span class="_ _1"></span>e<span class="_ _1"></span> t<span class="_ _1"></span>ak<span class="_ _1"></span>ing place o<span class="_ _1"></span>r<span class="_ _1"></span> dat<span class="_ _1"></span>a <span class="_ _1"></span>is be<span class="_ _1"></span>ing c<span class="_ _1"></span>o<span class="_ _1"></span>pied <span class="_ _1"></span>fro<span class="_ _1"></span>m the scrat<span class="_ _6"></span>ch<span class="_ _4"></span>p<span class="_ _1"></span>ad t<span class="_ _1"></span>o<span class="_ _1"></span> EE<span class="_ _1"></span>PROM.<span class="_ _1"></span> This c<span class="_ _1"></span>an<span class="_ _1"></span> be<span class="_ _1"></span> </div><div class="t m0 x1 h4 y169 ff1 fs2 fc0 sc0 ls9 ws1b">a<span class="_ _4"></span>c<span class="_ _4"></span>com<span class="_ _19"></span>pli<span class="_ _19"></span>she<span class="_ _8"></span>d by<span class="_ _8"></span> usi<span class="_ _8"></span>n<span class="_ _8"></span>g a MO<span class="_ _8"></span>SF<span class="_ _8"></span>ET t<span class="_ _4"></span>o pu<span class="_ _8"></span>l<span class="_ _4"></span>l<span class="_ _8"></span> th<span class="_ _4"></span>e b<span class="_ _4"></span>us<span class="_ _4"></span> di<span class="_ _19"></span>rec<span class="_ _4"></span>tl<span class="_ _8"></span>y to <span class="_ _8"></span>th<span class="_ _4"></span>e<span class="_ _4"></span> rai<span class="_ _8"></span>l<span class="_ _8"></span> <span class="_ _1"></span>as<span class="_ _8"></span> <span class="_ _1"></span>sh<span class="_ _8"></span>own<span class="_ _8"></span> in<span class="_ _8"></span> <span class="_ _1"></span><span class="ls0 ws0">Figure <span class="_ _5"></span>4<span class="ls8 ws52">.<span class="_ _1"></span> T<span class="_ _1"></span>he<span class="_ _1"></span> 1<span class="_ _1"></span></span>-<span class="_ _1"></span><span class="ls6 ws8">W<span class="_ _1"></span>ir<span class="_ _1"></span>e<span class="_ _6"></span> </span></span></div><div class="t m0 x1 h4 y1a0 ff1 fs2 fc0 sc0 lsb ws58">bus mu<span class="_ _1"></span>st<span class="_ _6"></span> be sw<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>c<span class="_ _1"></span><span class="ls0 wse">hed to<span class="_ _1"></span> the s<span class="_ _4"></span>trong pull<span class="_ _4"></span>up w<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>hin<span class="_ _4"></span> 10<span class="ff3 ws0">µ<span class="_ _1"></span></span><span class="ls33 ws73">s (m<span class="_ _8"></span>ax) af<span class="_ _8"></span>t<span class="_ _1"></span>er a C<span class="_ _8"></span>o<span class="_ _1"></span>nv<span class="_ _8"></span>ert T [44h<span class="_ _4"></span>] or C<span class="_ _8"></span>o<span class="_ _1"></span>py<span class="_ _8"></span> Scra<span class="_ _4"></span>tch<span class="_ _4"></span>pad </span></span></div><div class="t m0 x1 h4 y1a1 ff1 fs2 fc0 sc0 ls0 ws1b">[48h] comm<span class="_ _4"></span>and is issued, an<span class="_ _4"></span>d t<span class="_ _1"></span>he bus<span class="_ _4"></span> must be held high by<span class="_ _8"></span> t<span class="_ _1"></span>he pullup f<span class="_ _8"></span>o<span class="_ _1"></span>r<span class="_ _1"></span> t<span class="_ _1"></span>he durati<span class="_ _8"></span>o<span class="_ _1"></span>n of the c<span class="_ _4"></span>o<span class="_ _1"></span>nversion </div><div class="t m0 x1 h4 y1a2 ff1 fs2 fc0 sc0 ls33 ws6b">(t</div><div class="t m0 x8 h2b y1f ff1 fs6 fc0 sc0 ls23 ws31">CONV</div><div class="t m0 x84 h4 y1a2 ff1 fs2 fc0 sc0 ls33 ws74">) or <span class="_ _1"></span>da<span class="_ _4"></span>ta tran<span class="_ _8"></span>sfer (t</div><div class="t m0 xd5 h2b y1f ff1 fs6 fc0 sc0 ls35 ws75">WR</div><div class="t m0 xd6 h4 y1a2 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _1"></span><span class="wse">= 10m<span class="_ _8"></span>s).<span class="_ _1"></span> <span class="ls5 ws48">No<span class="_ _1"></span> other activ<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _6"></span>y<span class="_ _8"></span> <span class="_ _1"></span>ca<span class="_ _1"></span>n t<span class="_ _1"></span>ake place on t<span class="_ _1"></span>he 1<span class="ls0 ws0">-</span>Wire <span class="_ _1"></span>bus while t<span class="_ _1"></span>he<span class="ls0 ws0"> <span class="ls9 ws76">pull<span class="_ _19"></span>up </span></span></span></span></div><div class="t m0 x1 h4 y1a3 ff1 fs2 fc0 sc0 ls6 ws1d">is e<span class="_ _6"></span>na<span class="_ _1"></span>b<span class="_ _1"></span>led<span class="_ _1"></span>.<span class="_ _6"></span><span class="ls0 ws0"> </span></div><div class="t m0 x1 h4 yd2 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y1a4 ff1 fs2 fc0 sc0 ls8 ws52">T<span class="_ _1"></span>he<span class="_ _1"></span> D<span class="_ _1"></span>S<span class="_ _1"></span>1<span class="_ _1"></span>8<span class="_ _1"></span>B2<span class="_ _1"></span>0<span class="_ _1"></span> c<span class="_ _1"></span>a<span class="_ _1"></span>n a<span class="_ _1"></span>ls<span class="_ _1"></span>o<span class="_ _6"></span> be p<span class="_ _1"></span>o<span class="_ _6"></span>w<span class="_ _1"></span>e<span class="_ _1"></span>r<span class="_ _1"></span>e<span class="_ _1"></span>d<span class="_ _1"></span> by t<span class="_ _6"></span>he c<span class="_ _1"></span>o<span class="_ _6"></span>nve<span class="_ _6"></span>nt<span class="_ _6"></span>io<span class="_ _1"></span>na<span class="_ _6"></span>l me<span class="_ _1"></span>t<span class="_ _6"></span>ho<span class="_ _6"></span>d o<span class="_ _6"></span>f co<span class="_ _6"></span>nne<span class="_ _1"></span>c<span class="_ _1"></span>t<span class="_ _6"></span>ing<span class="_ _1"></span> a<span class="_ _6"></span>n e<span class="_ _1"></span>xt<span class="_ _6"></span>er<span class="_ _6"></span>na<span class="_ _1"></span>l po<span class="_ _6"></span>w<span class="_ _1"></span>e<span class="_ _1"></span>r<span class="_ _1"></span> su<span class="_ _1"></span>p<span class="_ _1"></span>p<span class="_ _5"></span>l<span class="_ _1"></span>y </div><div class="t m0 x1 h4 y1a5 ff1 fs2 fc0 sc0 ls8 ws52">t<span class="_ _1"></span>o<span class="_ _1"></span> t<span class="_ _6"></span>he<span class="_ _1"></span> <span class="_ _1"></span>V</div><div class="t m0 xd7 h2b y1a6 ff1 fs6 fc0 sc0 ls23 ws31">DD</div><div class="t m0 x98 h4 y1a5 ff1 fs2 fc0 sc0 ls0 ws0"> <span class="_ _5"></span><span class="ls8 ws1a">p<span class="_ _6"></span>in,<span class="_ _1"></span> a<span class="_ _1"></span>s<span class="_ _1"></span> s<span class="_ _1"></span>ho<span class="_ _6"></span>w<span class="_ _1"></span>n in<span class="_ _1"></span> </span>Figure <span class="_ _15"></span>5<span class="ws52">. The ad<span class="_ _1"></span>vant<span class="_ _1"></span>age of this method <span class="_ _1"></span>is that t<span class="_ _1"></span>he MOSFET pu<span class="_ _1"></span>ll<span class="_ _8"></span>up <span class="_ _1"></span>i<span class="_ _1"></span>s not<span class="_ _1"></span> </span></div><div class="t m0 x1 h4 y6e ff1 fs2 fc0 sc0 ls5 ws6">req<span class="ws17">u<span class="_ _1"></span>ired, and t<span class="_ _1"></span>he 1<span class="ls0 ws0">-</span>Wi<span class="_ _8"></span>r<span class="_ _1"></span>e <span class="_ _1"></span>bus is free to<span class="_ _1"></span> carr<span class="_ _1"></span>y<span class="_ _8"></span> o<span class="_ _1"></span>t<span class="_ _1"></span>her traffic dur<span class="_ _1"></span>in<span class="_ _4"></span>g t<span class="_ _1"></span>he temperat<span class="_ _1"></span>ure co<span class="_ _6"></span>nv<span class="_ _8"></span>er<span class="_ _1"></span>sio<span class="_ _1"></span>n time.<span class="_ _1"></span><span class="ls0 ws0"> </span></span></div><div class="t m0 x1 h4 y1a7 ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y1a8 ff1 fs2 fc0 sc0 ls5 ws53">The use o<span class="_ _1"></span>f parasite po<span class="_ _1"></span>w<span class="_ _1"></span>er <span class="_ _1"></span>i<span class="_ _4"></span>s no<span class="_ _1"></span>t<span class="_ _1"></span> reco<span class="_ _1"></span>mm<span class="_ _4"></span>e<span class="_ _1"></span>nded for t<span class="_ _1"></span>em<span class="_ _4"></span>p<span class="_ _1"></span>erat<span class="_ _1"></span>ur<span class="_ _1"></span>es above +100<span class="ff3 ls0 ws0">°<span class="ff1 ws4">C <span class="_ _1"></span>since the DS18B20 may </span></span></div><div class="t m0 x1 h4 y1a9 ff1 fs2 fc0 sc0 ls5 ws13">not<span class="_ _1"></span> be able to<span class="_ _1"></span> sust<span class="_ _1"></span>ain co<span class="_ _1"></span>mmunicat<span class="_ _1"></span>ions due t<span class="_ _1"></span>o t<span class="_ _1"></span>he higher <span class="_ _1"></span>leakage curr<span class="_ _1"></span>e<span class="_ _1"></span>nts t<span class="_ _1"></span>hat can exist at<span class="_ _1"></span> t<span class="_ _6"></span>hes<span class="_ _4"></span>e<span class="_ _1"></span> </div><div class="t m0 x1 h4 y1aa ff1 fs2 fc0 sc0 ls5 ws6">t<span class="_ _1"></span>em<span class="_ _4"></span>perat<span class="_ _1"></span>u<span class="_ _1"></span>res.<span class="_ _1"></span><span class="ls0 ws0"> <span class="_ _1"></span></span><span class="ws48">Fo<span class="_ _1"></span>r app<span class="_ _1"></span>licat<span class="_ _1"></span>ions <span class="_ _1"></span>in whic<span class="_ _1"></span>h suc<span class="_ _1"></span>h te<span class="_ _1"></span>mperat<span class="_ _6"></span>ures are <span class="_ _1"></span>likely, it<span class="_ _1"></span> <span class="_ _1"></span>is st<span class="_ _1"></span>rong<span class="_ _1"></span>ly<span class="_ _4"></span> reco<span class="_ _6"></span>mmended t<span class="_ _1"></span>ha<span class="_ _1"></span>t<span class="_ _1"></span> the </span></div><div class="t m0 x1 h4 y1ab ff1 fs2 fc0 sc0 ls0 ws3e">DS18B20 b<span class="_ _4"></span>e powered by<span class="_ _4"></span> an ex<span class="_ _4"></span>t<span class="_ _1"></span>ernal power suppl<span class="_ _4"></span>y.<span class="ws0"> </span></div><div class="t m0 x1 h4 y1ac ff1 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h4 y1ad ff1 fs2 fc0 sc0 ls5 ws16">In so<span class="_ _1"></span>m<span class="_ _4"></span>e s<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>uat<span class="_ _6"></span>i<span class="_ _8"></span>o<span class="_ _1"></span>ns t<span class="_ _1"></span>he bus <span class="_ _1"></span>master<span class="_ _1"></span> <span class="_ _1"></span>m<span class="_ _8"></span>a<span class="_ _1"></span>y <span class="_ _1"></span>not kno<span class="_ _1"></span>w wh<span class="_ _4"></span>et<span class="_ _1"></span>her t<span class="_ _1"></span>he DS18B20<span class="_ _1"></span>s o<span class="_ _1"></span>n the bus are p<span class="_ _1"></span>aras<span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span>e po<span class="_ _1"></span>wer<span class="_ _1"></span>ed<span class="_ _1"></span> </div><div class="t m0 x1 h4 y1ae ff1 fs2 fc0 sc0 ls6 ws1c">o<span class="_ _1"></span>r<span class="_ _1"></span> po<span class="_ _1"></span>w<span class="_ _1"></span>e<span class="_ _1"></span>r<span class="_ _1"></span>e<span class="_ _1"></span>d b<span class="_ _1"></span>y e<span class="_ _1"></span>xt<span class="_ _6"></span>er<span class="_ _1"></span>na<span class="_ _6"></span>l s<span class="_ _1"></span>u<span class="_ _1"></span>p<span class="_ _1"></span>p<span class="_ _1"></span>lie<span class="_ _6"></span>s.<span class="_ _1"></span> T<span class="_ _6"></span>he <span class="_ _1"></span>ma<span class="_ _1"></span>st<span class="_ _6"></span>er<span class="_ _6"></span> nee<span class="_ _1"></span>d<span class="_ _1"></span>s<span class="_ _1"></span> t<span class="_ _6"></span>his<span class="_ _1"></span> <span class="_ _1"></span>in<span class="_ _1"></span>fo<span class="_ _1"></span>r<span class="_ _6"></span>mat<span class="_ _6"></span>io<span class="_ _1"></span>n t<span class="_ _1"></span>o<span class="_ _6"></span> d<span class="_ _1"></span>et<span class="_ _1"></span>e<span class="_ _1"></span>r<span class="_ _1"></span>min<span class="_ _1"></span>e<span class="_ _1"></span> <span class="_ _1"></span>if t<span class="_ _6"></span>he s<span class="_ _1"></span>t<span class="_ _6"></span>ro<span class="_ _6"></span>ng<span class="_ _1"></span> bus<span class="_ _1"></span> p<span class="_ _6"></span>u<span class="_ _1"></span>llu<span class="_ _6"></span>p<span class="_ _6"></span> </div><div class="t m0 x1 h4 y1af ff1 fs2 fc0 sc0 ls0 ws3e">sh<span class="_ _4"></span>ou<span class="_ _1"></span>l<span class="_ _4"></span>d <span class="_ _1"></span>be us<span class="_ _4"></span>ed dur<span class="_ _1"></span>ing tem<span class="_ _8"></span>p<span class="_ _1"></span>erat<span class="_ _1"></span><span class="ls5 ws17">ur<span class="_ _1"></span>e conv<span class="_ _4"></span>ers<span class="_ _1"></span>i<span class="_ _4"></span>o<span class="_ _6"></span>ns. To<span class="_ _1"></span> get <span class="_ _4"></span>t<span class="_ _1"></span>his inf<span class="_ _4"></span>o<span class="_ _1"></span>r<span class="_ _1"></span>mat<span class="_ _1"></span>i<span class="_ _4"></span>o<span class="_ _1"></span>n, t<span class="_ _1"></span>he m<span class="_ _4"></span>a<span class="_ _1"></span>st<span class="_ _1"></span>er can issue a Sk<span class="_ _1"></span>i<span class="_ _4"></span>p <span class="_ _1"></span>RO<span class="_ _1"></span>M </span></div><div class="t m0 x1 h4 y1b0 ff1 fs2 fc0 sc0 ls5 ws19">[CCh] co<span class="_ _6"></span>mm<span class="_ _8"></span>a<span class="_ _1"></span>nd <span class="_ _1"></span>f<span class="_ _4"></span>o<span class="_ _6"></span>ll<span class="_ _8"></span>o<span class="_ _1"></span>wed <span class="_ _1"></span>by a Read P<span class="_ _1"></span>o<span class="_ _1"></span>wer<span class="_ _1"></span> Supply [<span class="ls17 ws34">B4<span class="_ _1"></span>h</span><span class="ws10">] command f<span class="_ _8"></span>o<span class="_ _6"></span>llowed by <span class="_ _4"></span>a “read tim<span class="_ _4"></span>e slot<span class="_ _1"></span>”.<span class="_ _1"></span> </span></div><div class="t m0 x1 h4 y1b1 ff1 fs2 fc0 sc0 ls5 wsc">Dur<span class="_ _1"></span>ing the read t<span class="_ _6"></span>ime sl<span class="_ _8"></span>o<span class="_ _1"></span>t<span class="_ _6"></span>, par<span class="_ _1"></span>as<span class="_ _1"></span>i<span class="_ _8"></span>t<span class="_ _6"></span>e po<span class="_ _1"></span>wered DS<span class="_ _1"></span>18B20s wi<span class="_ _1"></span>ll pu<span class="_ _1"></span>ll<span class="_ _4"></span> t<span class="_ _1"></span>he bus <span class="_ _1"></span>l<span class="_ _4"></span>o<span class="_ _1"></span>w,<span class="_ _1"></span> a<span class="_ _1"></span>nd exter<span class="_ _1"></span>nally<span class="ls0 ws0"> <span class="_ _17"></span></span><span class="ws6">po<span class="_ _1"></span>wer<span class="_ _1"></span>ed<span class="_ _1"></span> </span></div><div class="t m0 x1 h4 y1b2 ff1 fs2 fc0 sc0 ls0 wse">DS18B20s will<span class="_ _8"></span> <span class="_ _1"></span>let t<span class="_ _1"></span>he bus remain high. I<span class="_ _1"></span>f<span class="_ _4"></span> t<span class="_ _1"></span>he bus<span class="_ _4"></span> is pulled l<span class="_ _4"></span>ow,<span class="_ _1"></span> t<span class="_ _1"></span>he mas<span class="_ _4"></span>t<span class="_ _1"></span>er knows that <span class="_ _1"></span>i<span class="_ _4"></span>t<span class="_ _1"></span> m<span class="_ _8"></span>u<span class="_ _1"></span>st<span class="_ _1"></span> supply<span class="_ _4"></span> t<span class="_ _1"></span>he<span class="_ _1"></span> </div><div class="t m0 x1 h4 y1b3 ff1 fs2 fc0 sc0 ls0 ws3e">strong pull<span class="_ _8"></span>up o<span class="_ _1"></span>n the 1<span class="ws0">-<span class="ls5 ws17">Wi<span class="_ _8"></span>r<span class="_ _1"></span>e <span class="_ _1"></span>bus dur<span class="_ _1"></span>in<span class="_ _4"></span>g t<span class="_ _1"></span>e<span class="_ _1"></span>m<span class="_ _4"></span>perat<span class="_ _6"></span>ure conversi<span class="_ _4"></span>o<span class="_ _6"></span>ns<span class="_ _4"></span>.<span class="_ _1"></span><span class="ls0 ws0"> </span></span></span></div><div class="t m0 x1 h4 y1b4 ff1 fs2 fc0 sc0 ls0 ws0"> </div><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m3"></div></a></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>